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Learn how to pick the right aquarium plants, substrate, lighting, and fertilizers to ensure that your aquarium plants thrive and stay healthy.
Updated on November 13th, 2025
Learn how to use aquarium salt in freshwater aquariums to promote healthy gill functions, reduce stress, and treat infections in fish.
Updated on November 13th, 2025
Learn how to care for Feather Dusters. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on November 13th, 2025
Freshwater Snails can provide an appealing addition to your aquarium. Learn what to feed them, how large they get, and what size tank you need.
Updated on November 13th, 2025

Read about Habitattitude and Petco's commitment to protect our environment. At Petco, animals always come first. Learn how you can help.
Updated on November 13th, 2025
Goldfish are surface breathers so seeing them up at the top is not unusual. They are also very dirty fish, so I recommend getting a small pump for aeration and doing a partial water change. There is usually a period of cloudy water after establishing a new fish tank until the bacterial balance is established and stabilized in the tank. I also recommend getting a siphon--type tank cleaner so you can use it to clean the gravel as you remove some of the water. It acts as a vacuum to pull out all the fish poo that settles to the bottom, and the water you remove from the tank is a great thing to water any plants you have with, as it also fertilizes them. Remove no more than half of the tank's water and replace it with clean fresh water that has had the correct amount of water conditioner for the volume you're adding.
Updated on August 12th, 2025
Yes, in order to have a healthy tank and to give your fish the best environment, it is necessary. Here is a good write-up on the reasons why: https://www.petcoach.co/article/water-chemistry-basics-ph-temperature-water-hardness-waste/
Updated on August 12th, 2025
When used as instructed, plant nutrients and fertilizers designed specifically for aquarium plants will not harm aquarium fish. Allow new aquarium plants to settle and establish themselves before adding any fertilizers. Use aquarium plant substrates such as CaribSea Eco-Complete Plant Substrate http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9087 to get your plants established faster. Seachem Flourish Advance Natural Phytohormone Supplement http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=33890 will help stimulate root growth vital for overall plants health. Even though you have plants with low to moderate light requirements, be sure to use aquarium light specifically designed for planted aquarium use (sometimes called plant lights) and have the lights on between 10 and 12 hours a day. You may need to adjust the photoperiod (the amount of time the light is on) depending on how your plants are doing and to prevent unwanted nuisance algae growth.
Updated on August 12th, 2025
If it is on the glass, remove enough water to drop levels below the lotion and wipe with paper towels until clean. Avoid soaps or cleaners which can cause more harm to your fish than the lotion. Replace water with aged or conditioned water that is temperature matched to prevent further stress or shock. Use a fresh carbon filter insert to remove any residual lotion or chemicals. If the lotion is on tank furniture, remove and wash with a mild soap then rinse very well before returning it to the tank.
Updated on August 12th, 2025
Thanks for reaching out. If is a good idea to fast for 1-2 days prior to shipment, this decreased feces and will help to keep the ammonia down. Typically clear bags are utilized with about 50% water, and 50% air/oxygen used. A local pet store might be able to assist, as they get shipment in (so have older bags and boxes, which need to be disinfected) and hopefully the skills to ship. Check with the airline also, box needs to be well labelled "LIE ANIMALS" and "THIS END UP". Sometimes a health certificate for interstate travel is needed, so contact airline and State of Utah, veterinarian. Good luck.
Updated on August 12th, 2025