Shawn is incredibly knowledgeable and friendly. He was patient as we chose our fish and he gave…read moregreat advice. You can tell he knows what he's doing just based on his tanks. I would highly recommend using him over a fish store for your angels or your discus. He also has bristle nosed plecos. You can tell he does this because he just loves fish.

John has maintained my fish tank for many years. He is knowledgeable, honest and dependable…read more 3037506935 call him.

From the owner: All Seas Aquarium Service is a sales and service company based in Denver, Colorado. We provide…read moreinstallation and service for living reef, freshwater, and saltwater aquariums in your home or business. Our average customer has been with us for five years and several for more than twenty-five years. We look forward to adding you to our list of loyal and satisfied clients. Call us today for more information!

Julie, is awesome. Very knowledgeable, great selection of fish and supplies…read more Julie has a great selection of Chiclids

I really love this store. The fish are healthy, & the lady running the shop has a wealth of…read moreinformation that she freely gives as she shows you her fish. You can tell she loves the fish and wants them to do well with whoever they go home with. I was mostly focused on getting some fancy goldfish. Orandas, Ranchu, Ryukins, some of the more extreme body shapes. She had plenty and I purchased 4. It's been 2 months of beautiful & happy fish. I worked in the aquarium & fish business 30 years back for most of my 20's. I had always wanted a shop of my own. But the overhead cost of caring for, feeding and housing before you ever sell a fish make this a difficult business to survive in. But, its the only way to assure your selling healthy fish. So, when I find a shop like this, I support that shop, and I spend my money there. So, the shops like this, that sell the happy healthy fish, and give you the info needed to keep them that way, are able to continue to do so for years.

Fins Up is hands down the best saltwater aquarium store and service team I've ever worked with…read more Their prices are more than fair often better than what you'll find online and they back it up with an incredible depth of knowledge about saltwater systems, corals, and fish care. What really stands out is their customer service. The staff takes the time to explain everything, from equipment recommendations to proper tank maintenance, so you feel confident and supported. Their tank service is top-notch as well professional, reliable, and it always leaves my setup looking healthier and running smoother than before. Whether you're a beginner starting your first reef tank or an experienced aquarist looking for quality livestock and expert help, Fins Up is the place to go. I wouldn't trust my tank with anyone else.

Ryan and his family just opened up this gem of a reef and fish store and I speak highly enough of…read moreit. They carry most of the brands us hobbyists know and love, as well as brands that are comparable in quality, but lesser known and lower priced. The prices on coral and livestock are really good. So much so, that I drive from north Thornton, passing at least 5 closer fish stores, to their store to get what I need. Ryan runs an amazing service program as well and he helped me turn my tank around in 2 months when I thought it would take at least a year. I'm telling everyone I know about their store because the service, products and attention to detail are second to none!

Great selection of south and African cichlids along with all the usual varieties found in every pet…read moreshop.

I can see this store being helpful if you are an expert in the hobby but if you're a beginner do…read morenot come here expecting any tips or advice getting started. I came in asking about reef water and she responded they have roi water I could buy but offered little guidance on how to treat the water or get started. I can't ask what I don't know so I was expecting to be offered information from the experts.

I can't say enough good things about this fish store and the incredible people who work there. When…read moremy tank unexpectedly sprang a leak, I was completely overwhelmed and stressed. It felt like everything was happening at once -- and I truly needed guidance, reassurance, and kindness in that moment. Love was absolutely amazing. Not only knowledgeable, but genuinely compassionate and patient. I never once felt rushed or dismissed -- just supported. Rumi also went above and beyond, answering my emails almost instantly and making sure I had the information I needed right away. That level of responsiveness made all the difference during a stressful situation. What could have been a total disaster turned into a reminder that there are still businesses that truly care about their customers. Their kindness, expertise, and willingness to help meant more to me than I can express. If you're looking for a fish store that treats you like family and stands by you when things go wrong, this is the place. I'm incredibly grateful. They've also given me piece of mind for my future vacations

Zero if I could. What an awful experience. The CO owner lied to me, she told me she could work with…read moreme on a dead fish, I should've known that it was too good to be true. Having driven 45 minutes to the store with my water sample, which I tested against test strips, don't buy those, I was told the phosphates were too high. They don't include phosphates as a red flag unless they're going to deny you. My nitrate was too high? Nitrate is a normal part of a tank cycle. I've never qualified buying new fish based on having to do a tank change the day before purchase. And phosphate! Serious? Do you even sell that test kit? I've never seen it before. After spending $500 in one week you could do me the courtesy of saying "bring a water sample, it doesn't matter we're not giving you a thing." Notes: they are super friendly and helpful when you're buying something. Just don't expect much. They had a dead fish in one of the tanks that my son pointed out that had been there for at least a day. At least that's what the pleco was thinking. Now, find the tank. They have a 48 hour doa policy. They won't budge, trust me. Ask my seven year old who spent $35 on a butterfly pleco only to have it die within a week. $17.50 would have been enough for me, more than fair I said. Finally, even if you live in Elizabeth or Parker, and you are five minutes away from the store, drive the extra 45 minutes to Wheat Ridge and go to The Fish Den. Tell Michael Jason sent you. They have a better rating than MC Aquatics. Here are my readings according to an API freshwater master test kit ($40 at petsmart) Ph 7.4 High range pH 7.8 Ammonia 0 ppm Nitrate 0 ppm Nitrite 0 ppm See the pic below. Finally Phosphates: that's a joke. Good luck knowing that. You're welcome. Next time you tell someone nitrate is a 39, make sure that you tell them what the safe range is. And to think, you guys normally charge $6.00 for a water check. Buy your own test kit and save yourself the headache. Date of incident, June 17, 2025 Water sample from the same day.

So friendly and I love shopping local! Fish tanks are clean, animals and birds appear well cared…read morefor. If I were a pet in a pet store - I would pick pet world.

the living conditions they have their animals in are deplorable. i wouldn't support this business…read moreat all. their fish all look extremely sick. they're keeping their betta fish with tank mates that are biting their fins and stressing them out. one being a rainbow shark?!? even if you buy a fish from here it WILL DIE. they have "packages" with their birds, hampsters, and fish that all are not even bare minimum. they are exploiting animals for a quick cash grab and it's disgusting. really disappointing for a local store that's supposed to be "better" than big box stores. :/

What a cute little store! I went in for a birthday cake for my dog. They have a glass case full of…read morefreshly baked homemade dog-friendly treats. They were all SO cute! I had a really hard time choosing one for my pup. I went with the cake - because it was adorable. The employee working was so sweet and helped me navigate which was best for my pup! They also have super cute birthday toys and party hats! Unfortunately, I cannot rate the cake, however, Dozer can..... Design of cake: 4 paws out of 4 paws Taste: 8 paws out of 4 paws! Dozer says thanks to Two pals & a pup for the wonderful cake! It made his birthday so special! He hopes we return very soon!

Picked up A great birthday pup Cake for my now 5 year old…read more They both enjoyed the biscuit and will enjoy the cake over the next week. Keep the birthday celebration going.

Perfect place. Owner was super nice. Solid set up for dog wash with all the things just right…read more Keep it up boys!

Owners are very kind & knowledgeable about their products! Love coming in here, self dog wash is…read moresuper popular too!