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Learn how to safely handle your aquatic life to avoid toxin & bacterial exposure. Find aquatic life care supplies at your neighborhood Petco pet care center.
Updated on November 13th, 2025
Before establishing an aquarium at home, learn more about the basics of fish care.
Updated on November 13th, 2025
Choosing the right schooling fish is essential to creating a thriving freshwater aquarium. At Petco, we carry a wide variety of small and large schooling fish great for any aquarium.
Updated on November 13th, 2025
Shop Petco for low-maintenance aquarium decorations like the El Nino fern. We want to help decorate your aquarium to keep your fish happy and comfortable.
Updated on November 13th, 2025
We can help you navigate your way through all the types of lights in fish tanks and determine which type is best for your aquarium.
Updated on November 13th, 2025
Thanks for reaching out about you fish. It is believed to be a Comet goldfish. Water quality and nutrition is the key to success. Testing water parameter for pH, ammonia, nitrite and nitrate will give you guidance for a healthy environment. Purchased food should be rotated out every 3 months as vitamin C and other nutrients degrade over time. Trying to maintain water temperature can be challenging with out a heater, but most fresh water fish tolerate some changes. Good luck.
Updated on August 12th, 2025
At the very least, a 10 gallon tank with a filter, heater, hood and light. Ideally, the tank should be up and running (without fish) until it cycles properly. This means there needs to be sufficient time for beneficial bacteria to colonize the tank and filter to be able to break down wastes, namely ammonia and nitrites and to a lesser degree, nitrates. This can take several weeks to occur. You can cycle a tank with fish in it, but it will require daily testing of water chemistry to prevent a toxic build up of ammonia and/or nitrites. Either can kill your fish if not treated. Follow this link for a FAQ regarding Glo Fish: https://www.glofish.com/about/faq/ Follow this link for more about cycling a tank: http://www.firsttankguide.net/cycle.php
Updated on August 12th, 2025
The Cowfish, or Longhorned Boxfish, is a marine species that should be kept only by experienced aquarists. When stressed, they can release toxins into the water which may harm tank mates. Pacman frogs, leopard geckos, corn snakes or bearded dragons are all easy to keep.
Updated on August 12th, 2025
Arowanas need large tanks due to their size. They also require powerful filtration to maintain water quality. Water changes will also be critical to water quality since they produce a lot of wastes. Use only conditioned water that is temperature matched to prevent stress or shock. A home test kit should also be used to monitor water chemistry. Minimum tank size should be between 130 and 150 gallons. Adults will need larger tanks. Keep a cover in place as they are accomplished jumpers. They should be kept in "soft" water and, being tropical fish, maintain temps between 75 F and 86 F. Feed a varied and balanced diet including krill, shrimp, mealworms, nightcrawlers and feeder fish. Food can be fresh, frozen (thaw it first) or freeze dried. Lastly, these are aggressive fish, so tank mates must be chosen carefully, if at all.
Updated on August 12th, 2025
A pet store won't be able to take them due to disease risk to their stock, regardless of how healthy they are. You could advertise them as free to a good home on a buy and sell site. You can't just put them into a body of water as they wouldn't be used to it and would not survive. You don't necessarily have to keep them in a tank, even a large plastic box/ bucket would do.
Updated on August 12th, 2025