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Learn how to care for a Koi, recommended diet and aquarium setup. Find Koi for sale, supplies and equipment at your neighborhood Petco.
Updated on November 13th, 2025
Feeding your freshwater fish isn't as simple as adding a pinch of flakes! Read these three tips to learn more about how to provide your pets the nutrition and environment they need.
Updated on November 13th, 2025

When creating an outdoor fish pond you need the right environment, fish and maintenance to keep your water feature looking its best.
Updated on November 13th, 2025
Learn more about these slow moving fish and the care they need when added to your aquatic environment.
Updated on November 13th, 2025
Learn how to care for Goldfish, recommended diet and aquarium setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on November 13th, 2025
Koi fry can be fed daphnia, brine shrimp (live or freeze dried), krill or hard boiled eggs ( remove the yolk, blend, mix with water and pour into the tank). Feed them multiple times a day. Once they grow some, you can switch to "fry powder". This is basically finely ground koi pellets.
Updated on August 12th, 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
Thanks for reaching out about Rhino. An infection is likely, but first check water quality parameters such as pH, ammonia, nitrites and nitrates. Correct any abnormalities. Infections around the mouth can be caused by multiple bacteria, but Edwardiella caused a disease called enteric red mouth. Laying on the bottom probably indicates the infection has spread to the swim bladder, causing it to fill with pus or fluid. Systemic antibiotics are needed. Antibiotics added to the water will probably do nothing. A veterinary visit is recommended to help with diagnosis and a treatment plan. Good luck.
Updated on August 12th, 2025
They may be stressed from the trip, the water may be too cold (low temps can affect appetite in fish) or the water chemistry may be off. Consider a partial water change. Use only conditioned water that is temperature matched to prevent further stress or shock. The fish food is fine. They will likely eat it once conditions are corrected and they settle down.
Updated on August 12th, 2025
Science Diet is an excellent food but as you have noticed their over the counter foods typically don't have fish. They do have a prescription diet with fish but it can be expensive. I included a couple links to a couple different types of food that contain Salmon. https://www.chewy.com/purina-pro-plan-focus-adult-sensitive/dp/128666 https://www.chewy.com/purina-one-smartblend-sensitive/dp/37688 Thank you for using Boop by Petco.
Updated on August 12th, 2025