Freshwater Fish & Plants
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Welcome to the freshwater part of the hobby! These fish, invertebrates, and plants make up the majority of the aquarium hobby. However, don’t feel shorthanded by trying freshwater (as opposed to saltwater) as the colors, behaviors and shapes here are plentiful. Aquarium sizes can vary from single gallon varieties to hundreds of gallons and everything in-between. The gallery to the left are a mixture of our photos from the retail store while others are from our customers who want to show off their fishyfriends and aquariums too! We pride ourselves in our selection as we like to keep common fish as well as oddities and more extraordinary options for your aquarium as well. Our goal is not only to help but to inspire and excite. The availability of freshwater life is vast and we would love to keep it all, but in the event that we don’t have something in stock, we welcome special orders on fish, plants and/or inverts. Orders for live freshwater items typically occur every seven to 14 days and are held for observation, depending on the item to insure quality.  Freshwater fish are a great way to start the hobby if you are looking to get your feet wet and gain some experience or continue the hobby that is provides entertainment for years to come!

Saltwater Fish & Coral
Dive into a saltwater adventure with a reef or fish-only aquarium. These animals are packed full of color and uniqueness. Thanks to advances in technology and hardworking marine biologists, marine aquariums are becoming easier to care for every year! The gallery to the left are a mixture of our photos from the retail store while others are from our customers who want to show off their fishy friends and aquariums too!  Generally, aquarium sizes can vary from nano (or small) tanks to hundreds of gallons and in some cases even larger. Surprisingly, the larger a tank becomes in the saltwater world, it becomes more stable, which means it is easier to provide the proper care. Sometimes the tiny saltwater aquariums are the most challenging. Nonetheless, we are devoted to help make that dream (whatever it may look like) come true. The availability of saltwater life is vast and we would love to keep it all, but in the event that we don’t have something in stock, we welcome special orders on fish, corals, and/or inverts. Orders for live saltwater items typically occur every week and are held for observation, depending on the item to insure quality. A saltwater aquarium is a great addition to add color and movement to a space or a miniature get-away to the ocean from a dream vacation!
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Aquarium
Installations & Maintenance
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Tropical Pet Oasis is here to support you, but we can only do so much from our store so why not invite us to help in person? We are licensed and insured to setup the new addition to the home or office. Our installations also include instruction on how to operate equipment and helpful tips for keeping it all working and operating correctly. Any job, tiny or massive we can make it happen.

Ever wonder who takes care of that aquarium at the doctors or dentist office waiting room? It’s possible that that is us! Maintenance on aquariums can be tricky and/or time consuming but we offer services to help keep that dream alive in a home or commercial building. Our retail hours reflect how much time we spend helping others in the Aurora, Parker, Castle Rock and Colorado Springs on their setups. This maintenance can be re-occurring once per week or less often depending on the needs of the client and tank. Feel free to contact us for a free quote!

Custom Aquarium Design
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Happen to have the perfect spot for a fish tank, but can’t find the right sized aquarium and filtration? We can help build what is necessary to make that a reality including tanks (glass and acrylic), stands and more. This is a great time to creative and make something one of a kind. Any shape or size is doable whether it’s going along the wall or inside it as the perfect backdrop to a bar. Perhaps it’s time to reconsider the plan for that project car in the garage….

Does that rock and decoration just not look quite right? There is an art to designing the inside of an aquarium to fit needs of the owner as well as the inhabitants. The placement of rock, coral, plants and/or gravel all has an impact on the dynamic of the environment. It isn’t rocket science, but sometimes it just takes another set of eyes and hands to work and inspire an underwater architectural spectacle.