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Related Articles & Questions

Product Guides
Petco Filters: Complete Aquarium Filtration Guide
Discover the fish tank filter system that’s right for your aquarium. Learn about mechanical, chemical, and biological filtration at Petco.
Updated on June 19th, 2026
Care Sheets
Platy Fish Care: Beginner's Guide to Tank, Food & Compatibility
Learn how to care for Platy fish, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on April 9th, 2026
Care Sheets
Freshwater Crustacean Care: Master Tank Setup, Food & Compatibility
Learn how to care for Freshwater Crustaceans, recommended diet and aquarium setup. Find freshwater shrimp, lobsters and crayfish species at your neighborhood Petco.
Updated on April 9th, 2026
New Pet
Saltwater vs Freshwater Fish Tank: Costs & Setup
Wondering how much it costs to set up and maintain an aquarium? Find out the costs of freshwater versus saltwater tanks in our fish cost guide, complete with handy charts outlining common costs.
Updated on July 17th, 2026
Care Sheets
Master Rasbora Care: Tank Setup, Food & Compatibility for Beginners
Learn how to care for Rasbora's, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on April 9th, 2026
Food & Nutrition
What's the best food for small fish I found in a freshwater pond?
You can try feeding them commercial fish food or meal works from your local pet store. If you would like a consult, you can provide pictures and we can give you a better idea of what kinds of fish they are and if they have special requirements for their diet. Hope this helps!
Updated on September 24th, 2025
Food & Nutrition
Is fish-based dog food safe long-term, considering mercury levels?
Thanks for using Petco Pet Education Center, formerly Petcoach! As long as it is a good quality diet, these levels are usually kept to a minimum to the point that it is ok to eat it longterm. I recommend brands such as Royal Canin, Purina and Science Diet. Good luck and have a good night!
Updated on September 24th, 2025
Vet Q & A
My fish has white spots. Is it ich? What's the best tank treatment?
It sounds like they have "ich". Here is a good video about ich that should answer most of your questions. ( https://www.youtube.com/watch?v=gVwyOifCRHI ) I suggest you talk to an aquarist in your area to get some medication. ( https://www.yelp.com/biz/aqua-life-aquarium-rocklin-2?osq=aquarium+store ) Hope this helps. Best wishes.
Updated on September 24th, 2025
Vet Q & A
My red barb fish has a white thing on its skin. What is it and what to do?
A photo of the fish would be helpful if you can get one. It could be infection, injury or parasites. Any new fish, ideally, should be quarantined for at least 2 weeks before being staffed to the main tank. For now, quarantine the fish. Treat with a broad spectrum dewormer. You can find one in the aquarium section of the local Petco. Maintain pristine water quality and add in some plain aquarium salt (NOT table or Epsom salt). This will reduce stress, improve gill function, treat minor infection and aid in recovery. Dissolve 1 teaspoon of salt per gallon of water in a cup or two of tank water and gently pour it into the tank. Treat for no more than 14 days then reassess the condition
Updated on September 24th, 2025
Food & Nutrition
Why is my fish sick, gasping at surface with red fins in a small bowl?
The bowl looks definitively a bit small for the two fishes. To understand exactly what is going on you need to approach this problem radically but logically. Begin by submitting a water sample for quality testing. Most pet stores will do this for free or a nominal fee. Clinical examination should always include a water quality check, even if you have done so already. Water testing should be performed with a quality test kit, measuring NH4, NO2 and NO3. High ammonia levels, PH imbalances may be responsible for these signs. Oxygen concentration and quality of the filters should be determined as well. If water quality is good and there are no major imbalances, your fish should get examined to look for any sign of bacterial/fungal infection and eventually water should be treated. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
Updated on September 24th, 2025