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Learn how to care for Rainbow fish, recommended diet and aquarium setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on December 21st, 2025
Learn how to care for brackish water fish, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on October 23rd, 2025
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 October 23rd, 2025
Learn how to take care of Catfish, recommended diet and tank setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on October 23rd, 2025
Ich or white spot disease is a common parasite in fish. Learn how to identify Ich and how to treat ich.
Updated on October 23rd, 2025
Here is a helpful link: https://www.aqueon.com/information/care-sheets/goldfish Your local aquarium store will likely carry a powdered product to add to the water to increase the pH. The package will have dosing instructions. I hope this helps and please feel free to post any additional questions.
Updated on September 24th, 2025
Thanks for reaching out. There are many products available in pet stores for either adjusting pH up or down. Adding a buffer as a substrate (dolomite) could help regulate also. Maintaining water quality is obviously very important. Good luck.
Updated on September 24th, 2025
Check water chemistry first. Use 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 20 ppm or less. Perform partial water changes, no more than 30% at a time, to stabilize chemistry and/or to improve water quality. Use only conditioned water that is temperature matched to prevent stress or shock. Check water temp as well. Any of these can drive a fish to the surface. The "flashing" (darting about) can be due to infection (bacterial, fungal or parasites). Consider a broad spectrum antibiotic or an "all in one" product to treat multiple infections. Look in the Aquarium section of the local Petco for options. Follow label directions carefully and remove the carbon filter insert during treatment if indicated.
Updated on September 24th, 2025
I would recommend to have the water completely changed. New water should be ideally submitted for quality testing. Most pet stores will do this for free or a nominal fee. High ammonia levels, PH imbalances may be responsible for that as well. Oxygen concentration and quality of the filters should be determined as well. 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
Hydrogen peroxide can be used but it has the potential to be somewhat harsh on many species of fish. Unless you need to use it for a specific reason such as to eliminate a particular organism that is susceptible to H2O2, I would shy away from this instead electing to use something designed specifically with aquatic animals in mind. Hope this makes sense.
Updated on September 24th, 2025