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Related Articles & Questions
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- Health & Wellbeing
Two of our freshwater fish are acting oddly in the water. We did lose a few last night, due to an ammonia spike. We noticed some pale-colored, wormlike flesh dropping from the front area (between the mouth and front fins); this black Guppy is “wobb
Monitor water chemistry using 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 20ppm or less. Perform partial water changes to stabilize chemistry and/or to improve water quality. Use only conditioned water that is temperature matched to prevent stress or shock. Pristine water quality is the foundation for healing and recovery from infection or injury in fish. You can use plain aquarium salt (NOT table or Epsom salt) as a general tonic to reduce stress, improve gill function and aid in recovery. Dissolve 1 teaspoon of salt per gallon of water in a cup or two of water and gently pour it into the tank. Treat for 14 days then reassess the condition. An "all in one" product, such as Lifeguard (by Tetra), can be used concurrently to treat infection or parasites. Find one in the aquarium section of the local Petco. Follow label directions carefully and remove
Updated on August 12th, 2025
- Health & Wellbeing
I got 3 zebra danios and 2 leopard danios at petco and in about a day of having them one died. the next day another dies with a strange white spot growing on it. it was not like cotton through which I hear is a disease. my tank is a 20 gallon and be
Anytime there is an unexpected loss of fish, water chemistry should be checked. Use a home test kit ( https://www.petco.com/shop/en/petcostore/product/api-freshwater-master-test-kit# ) or submit a water sample for testing. Most pet stores will do this for free or for a small fee. Confirm an absence ( 0 ppm ) of ammonia and nitrites with a nitrate level of 20 ppm. pH can range between 6.5 and 8, water temp should be 65 F to 75 F. If chemistry and water quality are within normal parameters, then illness or aggression would be other reasons for the loss. It is always recommended to quarantine fish in a separate tank for 2-4 weeks prior to adding them to the main tank. During this time, they can be treating for infection or parasites. I am sorry for the loss of your fish.
Updated on August 12th, 2025
- Health & Wellbeing
hello i have started a 75 gallon tank last Saturday made 4 weeks i have had fish in the tank to help with cycling i had 8 zebra danio but they all have died or been eaten by the others now i have 6 black skirt tetras so i started putting fish in my t
If you put an Oscar in with your Tetras, they will be harassed and eventually eaten. Use a home test kit or submit a water sample for testing to check chemistry. Aim for 0 ppm ammonia and nitrites with a nitrate level of 20ppm or less. It can be slightly higher if you have live plants. If there is still ammonia present, the tank is still cycling. The cloudiness may be micro-bubbles which will eventually resolve or it could be a bacterial bloom which will also resolve once the tank has cycled.
Updated on August 12th, 2025
- Health & Wellbeing
Hi, I bought 6 platy fish and a black corydora catfish about 2 weeks ago, all seem in good health bright colours and swimming round as normal they are in a 48l tank which the pet store said was a big enough tank for them all, but one of them seems to
It doesn't look like Ich in the images provided. Ich will appear as multiple white dots the size of salt grains on the fish. The fish will "flash" or dart about the tank and rub on objects due to itching. The fish may have an infection or the loss of scales may be due to trauma from other fish. Consider separating the affected fish into a separate tank to recover. If this is not possible, maintain pristine water quality in the main tank and consider a broad spectrum antibiotic. You can find one in the aquarium section of the local Petco. Follow label directions carefully and remove the carbon filter insert during treatment if indicated. You are likely at the maximum number of fish in the tank. As they grow, they shouldn't get bigger than 2 - 2.5 inches, and reach adulthood you may need a larger tank or you may need to separate them.
Updated on August 12th, 2025
- Health & Wellbeing
Is my fish ok. Does it have a sickness or diseases?
Thank you for using Boop by Petco! Ariel does look like she has a little bit of white on her abdomen, and potentially some raised scales. She also appears to be swimming towards the bottom of the tank, but this may just be a coincidence in the photo. The white on the abdomen can be caused by a fungal or parasitic infection, so I recommend separating this fish from the others. You may want to change the water and sanitize the tank if any other fish start to get similar symptoms. I hope this helps and am happy to answer any other questions you may have!
Updated on August 12th, 2025
