Imagitarium Freshwater Fish

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Home & Habitat
How to Set Up a Fish Tank: Complete Setup Guide
Everything you need to know about how to start a fish tank. Learn about setting up an aquarium, choosing the right type, and acclimating new fish to your tank.
Updated on June 19th, 2026
New Pet
Best Fish for Beginners: Top Freshwater Picks
Some fish species generally do well in smaller aquariums, are more adapted to aquarium life, & can be slightly more forgiving with water quality fluctuations.
Updated on June 19th, 2026
Care Sheets
Killifish Care Guide: Unlock Vibrant Health for Your Aquarium Fish
Learn more about Killifish and their care to see if they are the right aquatic life to begin or add to your aquarium.
Updated on April 9th, 2026
Care Sheets
Freshwater Angelfish Care: Tank, Food, & Happy, Healthy Fish
Learn how to care for angelfish, recommended diet and aquarium setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on April 9th, 2026
Care Sheets
Thriving Freshwater Shrimp: Tank, Food, & Compatibility Tips
Learn how to care for Freshwater Shrimp, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on April 9th, 2026
Food & Nutrition
New to fish? What are the easiest fish and tank size for beginners?
Guppies or Neons are excellent "starter" fish. Care is simple and they are inexpensive. A standard 10 gallon tank is recommended to start. Most people don' t realize the amount of "work" needed to maintain a tank. Filter maintenance, monitoring water chemistry, water changes, monitoring fish health and providing a balanced diet are just a few items that need regular attention to keep a tank thriving. Even though fish aren't as cuddly as cats and dogs, they do have their own personalities and even respond to their owners, especially at feeding time! Studies have shown that simply watching fish in a tank can lead to a reduction in both heart rate and blood pressure. It is quite relaxing.
Updated on September 24th, 2025
Vet Q & A
What plants and gravel should I use for my 20-gallon freshwater tank?
Our Standard Aquarium Plant Pack provides a convenient solution for your dilemma. This package includes Micro Sword or Dwarf Hairgrass, Anubias Nana or Anubias Barteri Round Leaf, Java Fern, Red Cryptocoryne or Green Cryptocoryne, Water Sprite, Hornwort, and Cabomba. http://www.liveaquaria.com/product/prod_display.cfm?c=768+2145+2146&pcatid=2146 A substrate specifically designed for live aquarium plants such as CaribSea Eco-Complete Plant Substrate is recommended for long-term success. http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9087 Be sure to provide proper lighting conditions by employing aquarium light fixtures specifically designed for planted aquarium use.
Updated on September 24th, 2025
Vet Q & A
How to identify a wild freshwater fish resembling a mosquito fish?
Without an image, it will be difficult to definitively identify the fish in question. It may be a wild guppy. You can request a consultation which will allow you to share images. It is not recommended to add wild caught fish to an existing aquarium without an acceptable quarantine period.
Updated on September 24th, 2025
Vet Q & A
My cichlid tank has algae, bugs, and sick fish. What's wrong?
Those could be copepods. They are typically harmless and difficult to completely eradicate. On the good side, they are a sign of a healthy tank and are useful in eating decaying matter in the aquarium. The brown algae can be due to insufficient lighting or lighting periods. You can wipe down the glass and plants, perform a partial water change and increase lighting. It can take weeks to month to resolve. Use only aged or conditioned water that is temperature matched to prevent stress or shock. Confirm stable water chemistry and quality. Make sure the water temperature is correct as well. Too warm or too cold can cause stress. Look the Jack Dempsey over for signs of injury or infection. Ich, bacterial infection or fungal infection can cause the fish too twitch or shiver. Plain aquarium salt (NOT table salt or Epsom salt) dissolved at 1 tablespoon per 5 gallons of water is a great general tonic that can reduce stress, improve gill function, treat minor infection and aid in any recovery. The eels should be fine, but the snails should be moved temporarily. You can relocate both to a separate tank to be completely safe. Treat the tank for 10-14 days then reassess the condition of the fish. Perform a partial water change afterwards to reduce salinity before you returns the eels and snails to the tank.
Updated on September 24th, 2025
Vet Q & A
Why are my fish dying with pink and green algae in their tank?
Check the water chemistry using a home test kit or submit a water sample for testing. The local Petco may do this for free or for a small fee. Aim for an absence (0 ppm) of ammonia and nitrites with nitrates at 20ppm or less. Perform partial water changes to stabilize chemistry and/or to improve water quality. Rinse the filter media in tank water, not tap water, and replace it. Use only conditioned water that is temperature matched to prevent stress or shock. To limit algae growth, maintain pristine water quality via filtration and regular water changes. If possible, turn up filter flow to keep water moving. If this stresses the fish though, do not do it. Do not overfeed and remove any uneaten food promptly. Limit lighting to 8 hours daily and closely monitor water temperature as well. All these can promote algae overgrowth.
Updated on September 24th, 2025

Imagitarium Freshwater Fish

Baby Girl Betta

Male Blue Crowntail Betta

Female Elephant Ear Betta

Female Betta

Female Blue Veiltail Betta

Male Cambodian Veiltail Betta

Male Halfmoon Betta

Male Blue Marble Betta

Male Black Orchid Betta

Male White Opal Betta

Female Green Veiltail Betta

Male Green Crowntail Betta

Male Blood Moon Betta

Female Red Crowntail Betta

Male Stars & Stripes Betta

Male Rose Gold Betta

Male Dragonscale Betta

Male Elephant Ear Betta

Male Deltatail Betta

Baby Boy Betta

Male King Betta

Female Red Veiltail Betta

Female Crowntail Betta

Female Koi Betta

Male Galaxy Koi Betta

Male Halfmoon Doubletail Betta

Female Blue Crowntail Betta

Male Paradise Betta

Male Blue Veiltail Betta

Male Lunar Flare Betta

Male Bumblebee Betta

Male Koi Betta

Male Betta

Male Red Crowntail Betta

Female Green Crowntail Betta

Male Butterfly Betta

Male Crowntail Betta

Male Halfmoon King Betta

Male Red Veiltail Betta

Baby Betta

Female Halfmoon Betta

Male Cambodian Crowntail Betta

Male Doubletail Betta

Male Copper Betta

Male Black Platinum Dragon Betta

Male Green Veiltail Betta

Male Pink Orchid Betta

Male Red Platinum Dragon Betta

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