I decided to drop in since I want to start a plant tank. I haven't been to the store in about 20 years and although I did Not make a purchase, their staff was very helpful, knowledgeable and friendly. Very good selection and prices. I found the same items listed on Amazon for the same price. I'm glad to see them still in biz after all these years despite terrible gentrification in the neighborhood. I'll be back soon. read more

If I could give this place a lower rating I would. The guy who runs this place is in a hole. I've been going here for years and every time he finds a reason to argue with me, super unfriendly, the customer is always wrong here. And now they have this absurd return policy where has to be all this criteria, And conditions, water samples. This is bullshit if you sell a fish that dies you return it no questions asked. Period.This place is not worth it, go to other fish stores, where they treat people nice. read more

Mostly over priced, I bought several coral drags from here all were dead within a week, I bought some from petco at the same time those are still alive, I also have a cichlid tank, they sold me "males" that had ich and "frontosa" I'm not sure what it actually is but it's been in my 125 for 6 months and hasn't grown at all, not to mention I was one of the only people in the store and still waited a solid half an hour before someone came back to get the fish I wanted, long story short I've found better stores such as Aquamart and liquid kingdom read more

We stopped in to check out their freshwater fish selection and ask a few questions. Soooo helpful and friendly. They talked us through establishing our ecosystem, which fish were the best to start with, what to expect in the first 30 days, and which heater and food to work with. They recommended bringing in a water sample after 30 days to see if we are good to go ahead and add more fish. They gave us information about different little critters like frogs, lobster, and shrimp. It was super helpful and prevented us for going crazy and possibly killing everything we put in the tank. We will definitely be back for future tank/fish needs read more

I'm not sure if I had an inexperienced guy helping me or what, but he tried to tell me java ferns naturally get brown and burnt looking on the edges (the ones they had were roughed up a bit - all the other plants were in good shape). I've kept java ferns before and had perfectly green leaves, but I went ahead and bought one here anyway because I was wanting low-medium light plants to fill out my tank. I also asked for a very distinct looking fish, only to check the bag walking out after I paid to realize he had netted a completely separate species instead. No biggie, he might not know freshwater fish that well or something. Took them back in and another guy netted the fish I wanted. I had paid for 3, but he only gave me 2. I asked if they were the same price to gently point out this, but they said yes and that was that. After all of that fuss, I gave up on trying to get him to net another (he was convinced there were only 3 in the tank with one in meh shape, but I pointed out a 4th several times to no avail). Great selection, meh service. read more

The staff was very helpful when I went in there to get fish to stock my tank with goldfish. The guy that helped me had no issues catching the exact goldfish that I wanted. The store is huge and has a very wide variety of fish and supplies. The guys that helped me also helped me pick out the best food for my new oranda goldfish. read more

Fish Den - Oranda goldfish - Pet Stores Near Me - Denver, Colorado

These guys are the experts in home aquariums and fish. Do not go to some crappy big box like Pets Mart (we did that). These guys know how to setup your fish tank, stock it, and maintain it. They have a huge selection of everything from common to exotic, fresh water to salt. If you need a used tank, they can help there too. We only come here from now on. read more

Love this little store - for the variety and for their deep knowledge. I will be coming back!

Perfect place to buy fish especially if you're new to the hobby they'll answer any questions you have and they make sure not to sell you anything without finding out what kind of tank you have and if you can keep it in that tank. Never had any problems with their fish and they have a huge selection of beneficial supplies as well as decor read more

Horrible service. If I could give ZERO stars, I would. I desperately want to support my LFS, but this place is not the one for me. I was completely ignored while standing at the checkout for several minutes, with several workers standing there. I finally asked if someone could ring it up and that seemed like a huge burden. I will NEVER go back and will continue searching for an LFS that treats customers like human beings. read more

Their tanks have ich. Two of three fish we got from here died within two days, and one died within 25 minutes of leaving the store. Absolutely unacceptable, and they won't give us any return or reimbursement for their mishandling. read more

This place was pretty nice with lots of well-stocked and healthy fish and plant tanks. They had a good selection of both red and yellow shrimp as well, which I appreciate as a shrimp fan. It was also nice getting a mini-lecture on the cycling process because I think it shows that they will help you be a responsible aquarium owner for maximum happiness rather than maximum profit. One big downside I saw was a warning about not being able to select specific fish. So in cases such as fancy guppies where there are many different looks, you may not be able to get the ones that you want. That being said, we were able to select a specific mystery snail, so it may not be a hard and fast rule (then again, that snail was alone in a separate tank). I also didn't care for the 4 employees standing around the small entrance chatting with each other. When the entrance has such little room, that should be done elsewhere. read more

Very under whelmed with the store, it said it was the biggest fish store in Colorado, if it is that's sad. My local store is a little smaller, but the selection was vastly superior and the staff here was not very interactive. read more

I walked through this place and saw some nice fish - also several tanks with dead and dying fish. Staffed by teenagers in black hoodies who appeared not to care. read more

Ok. Could be more willing to help. But good supplies if you know what your doing and don't need help.

The place is in a kinda creepy building and sure, it smells like aquarium water but what do you expect? The staff is super helpful, though not unless you ask for it. Once you have one to yourself get ready to learn and explore. I once brought home a beautiful Mickey Mouse Platy. Little did I know, she was preggo!! I ended up with 40 little fishes! Of course, natural selection, only two of them survived. Still, I got three fish for the price of one! read more

I'm very surprised to see so many negative comments. I usually go the Fish Den because they are the only store near me with a decent selection of aquatic plants. I buy a ton of plants from them, only a few fish, none of them had diseases. The only complaint I have is that the staff doesn't have a uniform so it is sometimes hard to find someone to help you when you don't know who works there and who is a customer. read more

This place is just a notch above petco or petsmart the couple times I've bought fish from them they always seem to have diseases after bringing them home. They do have a good plant section. read more

GROSS place and non-supportive, arrogant, and poorly dressed staff. Colorado really needs to get a high quality store dedicated to aquatics.

The fish selection is amazing! However, the staff are not the friendliest. I am not sure if their goal is to not sale fish or just bombard you with several questions about your pre-purchase. Whats next?? A home visit? read more

I have been back to Fish Den several times for fish, and I am always impressed by the numbers of fish and the variety. I have not had any problems with fish since the first review I wrote, so I have upped their rating. This is one of the three stores I like to go to for fish. read more

Huge store with a great selection! A little pricey, but you get what you pay for in terms of quality and having access the best resources. They have some species that you won't find anywhere else in town. read more

This place is wonderful! After several depressing fails at petsmart, I decided to head up north to this locally owned business, and I am so glad that I did! The selection was wonderful, they had everything I was looking for from the basics to more rare items that I'd resigned myself to only being able to buy online. The fish selection beats the hell out of any corporate pet store I've ever been to and while they are slightly more expensive, it's totally worth it considering they don't all get sick and die after a few days. However, the product and selection pale in comparison to the staff. The guys working at the shop were incredibly friendly and helpful, despite the fact that I was obliviously standing in their way quite often, and I'm one of those annoying fish buyers who wants one specific goldfish out of a tank with about a million nearly-identical goldfish... There was also an older gentleman (I assume he is the owner) who spent a good chunk of time schooling me on how to properly maintain my aquariums and the exact methodology that will lead to the healthiest set up. I am no novice to owning aquariums, but he was telling me things that were completely new to me, and extremely useful. He is Yoda of the fish world. I can't say enough about this place, I wish I could give it more stars. These guys are great and my fish are strong, happy, and healthy. read more

Great store, with healthy fish and individual tanks. Bought some snails, which were disease-free. Also a great selection of dry goods. If you're a fishy person, this is where you want to be. read more

Well today I visited fish den and got a beautiful swordtail. Although I am pleased with my new fish, I was looking for something different. I was looking for a discus. The staff shot down everyone of my ideas and told me I couldn't get a discus given that I have a rainbow shark. When we asked if they took fish (to return the shark) they said yes. I then asked them if I could then get a discus and the guy told me I was to inexperienced!!! Really!? Well ill be going to Neptune and Todd's more!!" read more

Great selection of tanks. Cluttered and old but it serves it's purposes. The tanks were fairly clean (some substantial algae growth in some of them) but overall the fish looked healthy. The huge Gourami is still in a 55 gallon tank. My number one complaint is that they are overpriced. My fault that I purchased before researching. The light I bought was $40 less on Amazon. Several other products were equally marked up in price including substrate which was $13 less a bag at Petco. Staff wasn't super helpful either - too busy talking with each other to help a customer. read more

This store flat out lies about the results of their water quality test so they don't have to honor their guarantee on freshwater fish. Additionally their fish are very unhealthy and will infect your tank with fungal infections. After having half the fish I bought from them die within 24 hours in my quarantine tank, I tested their water with a master test kit and my ammonia level was under .25PPM which is an acceptable level for a quarantine tank. I then took a water sample to them since they require it to honor their "guarantee" When the clerk at the counter tested my sample it registered over .50PPM ammonia and they refused to honor their guarantee. I went home and immediately tested my water again to find it was still well under .25PPM The fish themselves died of a fungal infection which was easy to see by the fuzzy white spots growing on their bodies. The unprofessional grungy looking kids working at the store did not even want to look at their bodies to see what I was talking about, instead insisting that high ammonia killed the fish. One fish even died in the bag before we even left the store. That should have been a big enough warning but I unfortunately ignored it. The tanks in the store are dirty and many had dead fish or fish with ragged fins from "fin rot" please do not give them your money. read more

I was hoping to get a 50 gallon tank from this place. I called and they said they aren't being made anymore. I didn't believe that so I called Aqueon (Allglass) and they said yes, they are making 50 gallon tanks still. Called a few other pet stores including Aquamart at Wads and 285 and the owner, Jeff, gave me a price quote on a 50 after talking with the local rep that day. Called Fish Den back and they said the same thing. I told them yes, they do still make 50s and the guy says "well I don't think we can get them". That is some amazing customer service right there. I'm totally impressed. I wouldn't want you to go out of your way by having to make a phone call or anything. This place sucks. I'll be giving my business to Aquamart. read more

So far my experience here has been pretty good. Things are a little expensive but hey they need to make money. Their staff is pretty helpful overall. They get new stuff in every week basically which is pretty cool! I mostly come here for saltwater stuff but their FW selection is pretty good as well. If you're looking to get fish I recommend coming here. The fish prices at least saltwater are cheaper/comparable to online, but you might be able to find some of the supplies on Amazon for a cheaper price. read more

This is my favorite fish store in the Denver Metro area. Wish it were closer to Lakewood. Sure it is a little dark and crammed, but they have just such a great selection and most of their prices are pretty darn good! And their fish tanks always look healthy. I really don't have much negative to say other than it is sometimes crammed when you go on a weekend, but we definitely keep going back. Keep your prices affordable and the great selection and I'll keep coming back for my freshwater needs! read more

This store is stocked with everything you need for both fresh water and salt water tanks. More importantly they have a knowledgeable friendly staff. read more

This place is amazing. They have knowledgable staff who are always friendly, and willing to listen to me ask a barrage of questions. They really do know their stuff. They have an amazing selection of freshwater fish, freshwater plants, and even all of the saltwater stuff I know nothing about. They have all sorts of fertilizers, substrate, fish food, and other things that big box retailers don't have. I live far away from here but I am always willing to make the drive to support this place because it is just that awesome. I have never had any issues with fish dying or bringing back diseases, all of the plants i have bought from there have thrived in my tanks, and the people who work there clearly care in the wellbeing of the fish they sell. If I could rate more than 5 stars, I would. read more

This place is always fun to visit, probably one of the largest selections of fish and supplies in colorado. Probably THE widest selection of supplies, in fact. That doesn't always mean you find what you want (wished they carry my brand of heaters, but my other favorite store does, so that works out), but it's usually where I go in a pinch to find the harder to find stuff. They also carry the REAL python branded pythons which is great, and in general if you need supplies, this is the first place I'd go. Many stores are practically out of the supplies business due to internet stuff, but it's still nice to have some place to go when you need something on short notice. This is usually that place for me. This place is good to get various Seachem stuff as well, purigen and the like, they always have some. They even have the "high end" purfiltrum stuff, I was honestly surprised. And they have a TON of tanks for sale. Really, their selection of new tanks is pretty ridiculous. Staff wise, they always say hi and are courteous, I never had any real problems, I will say that not all of them are as talkative as others, but i've never had any trouble getting help there. one younger fellow there was really nice though and we chatted for a bit about the tanks we were both setting up, others are more to the point and a bit less conversational, but hey, not everyone rambles on forever like I do, lol...can't say anyone was "rude" though like these other reviews. they've always been real good to me. Also this place usually has some of the smaller-growing plecos like the BN's and clowns, that's always a nice find. Fish selection is usually pretty good, not overly focused on anything in particular though, don't expect all cichlids or something, they've got a good assortment of everything. I love their big "not for sale" tank with the gar, and giant gourami, silver arowana, barb, etc, all silvery/shiny fish, all big fish, haha. It's an unusual combination in an unusual shaped tank. Worth seeing while you're there anyway. The only real negative is that it's not really a full service shop, so they won't deliver a tank or do any setup or maintenance or anything like that. I still managed to fit one in my car, lol. There are some other places that are full service that I use for some of my more oddball tasks like this, but if you're looking for supplies or a tank and have a big vehicle to fit it in, this place is great. read more

Yep, they do have a large selection but the staff is rude for sure. I feel like I'm bothering them when I ask for a fish and when they do roughly catch the fish they really don't give a crap how they treat it! I guess all fish are hardy and it really shouldn't matter how much I'm paying for the fish because they still trap them against the glass chase them around and around, grab them with their hands, slam the bags down, don't put enough water in the bags....etc. I do like when they realize the customer isn't too happy and start talking about the weather! Nice try... read more

This place is over priced and the owner has never acknowledged me as I've been in there many times. Clean the place and get competitive with your prices on saltwater equipment. read more

The guys were incredibly personable and informative. Great selection of fresh water fish. The salt water fish were fun to look at too. Happy there is a local resource! read more

Store is filthy. Fish are very pricey, Especially the Discus. Really, $200 for a Discus. Saltwater tanks have red algae. Seems they never clean the tanks. Would not recommend the store to anyone. All those high ratings must be from friends and family. read more

Buyer beware. I lost one of three fish I purchased 9 days ago. I was asked to bring the fish and a water sample into the store. There is no posted warranty so management arbitrarily decides if they will do anything for you. My water sample was to blame for not replacing the fish. I'm sure this common. The staff member I worked with didn't even know how to fix my supposed issue. Stick with Petco and PetSmart, the fish are more affordable and just as healthy, they honor their warranty and if there is really is an issue with your water, they work with you to fix it, not just sent you away like the Fish Den did. read more

Staff was very nice, but their knowledge about brackish fish was horrible. They all had a different answer for what the salinity of the tank should be, from 2 tsp/10g to 1TBS/gallon! They could not tell me what the target specific gravity should be either. There was poor advice for how many fish for the size of the tank. I was sold Aquarium salt to make brackish water which NOW from what I've read should be Marine salt and that they are NOT the same... Three of the fish I bought there died within 48hrs and the other three barely lasted a few weeks (this is despite being told my tank water parameters was "perfect" every time I brought in a sample). Would definitely not return to this store. They should not be selling certain fish they know nothing about and just stick to common breeds. It's sad for the customers and the poor fish...Either train your staff better, or stick to what you know... read more

This place..ugh! My boyfriend and I bought a 400.00 protein skimmer from them back in April. They seemed so helpful helping us pick it out telling us that of the two we were deciding on the Red Sea Turbo X2 was the one we should get bc the parts were very easily to be replaced. So we of course got that one. The pump didn't even work properly and went out after a month of use. We had put the receipt in the box so we wouldn't lose it, which we later couldn't find. UGH. Thankfully I had my bank statement where I charged in on my card. I emailed and waited awhile for a response from Red Sea only to find out that my statemnt isn't good enough and if it was they don't even make that pump anymore. Now, we have about 4000+ in this tank, so I call the store to just try to see if they have a spare. I called on the weekend and Mike(manager) seemed to never be there. When I finally got ahold of him 3 days later I told him what had happened and he said he would talk to his parts guys and to call in the morning. So I did, and he was busy and would call me back, he never did. So I call him this morning, only to speak to one of their rude employees to find out he won't be back until after Labor Day and that I would just have to go through Red Sea. I explained theysaid they didn't even make the pump anymore and he just repeated himself telling me rudely that all he knew was that I needed to go through Red Sea. How annoying. The ONLY reason why we chose the one we did was bc they said they could get replacement parts easily..what BULLSHIT! I WILL NOT go to these this store for anything ever again. read more