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Petco Marine Fish
Welcome to Petco’s saltwater fish store. Pet fish can make wonderful additions to your home and family. At Petco, saltwater marine fish for sale can be delivered to your home or purchased from our in-store Pet Care Center Aquatic Departments.
There you can find many kinds of Petco fish. Our pet fish types include beautiful Blue Hepatus Tang, Dog Face Puffers, Black Volitan Lionfish, Majestic Angel Fish and many other species. When you’re ready to order or pick up one of our saltwater aquarium fish for sale, you’ll want to be prepared with the appropriate home to welcome your pet fish.
Get set up with the appropriate aquariums, kits and stands, as well as fish feeding accessories. You’ll also want to make sure you have suitable aquarium water care supplies for aquarium maintenance.
You can discover many saltwater fish for sale in our fish pet store that can be great for either beginner aquarists or long-time fish pet parents. To make sure you’re adding an appropriate mix of fish into your community, check out our saltwater aquatic life compatibility chart.
Discover freshwater fish for sale at Petco for the right pet fish for your freshwater aquarium—including Petco betta fish.
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What types of fish should I buy because I'm a beginner in this . I have a 1 feet tank . One more thing I have heard that live-bearers could be best But I want your suggestion. And also what other Things I should buy and can you tell me a site that ca
Without anything to use for scale, it is hard for me to tell how big your tank is, but in general it seems very small. Also, the water that is in the tank appears very cloudy right now, so that would be the first place to start. Water quality is very important, and will make or break your ability to house and care for fish. I would recommend getting a good filter system (you can visit a local pet store to assist you with brands in your area, as I am not familiar with what you can get in India). Be sure to bring the measurements (height, length, width) of your tank, or the gallons or liters so they can tell you what capacity of filter you will need. Everything else will depend on what types of fish you get - if you plan on getting multiple fish, they will need to be small - a general rule of thumb is one square inch of fish per gallon of water. Depending on the species you get, you may need to also get a bubbler to ensure there is enough oxygen in the water for them, and you will also
Updated on August 12th, 2025
- Health & Wellbeing
I am a beginner and I was planning on getting purchasing a 20 gallon tank. I wanted a Tang, a Clownfish, a Chromis a some guppies, would the size tank be to small?
The Tang, Clownfish, and Chromis are marine fish requiring a saltwater aquarium while guppies are freshwater fish. These fish are not compatible as they require two completely different setups to accommodate their different environmental needs. If you are going to set up a marine aquarium - a 20 gallon aquarium is too small for the fish you have listed. A small Percula Clownfish maybe suitable in a 20 gallon aquarium temporarily, but be prepared to upgrade to a larger aquarium as it grows larger. In general, 50+ gallon aquariums are recommended to properly house marine fish as they tend to grow large and require plenty of room to swim. If you are planning to set up a freshwater aquarium, a 20 gallon setup is adequate to house guppies.
Updated on August 12th, 2025
- Health & Wellbeing
Whats a low cost treatment for my infected fish with ich that already have the white spots on them
Gradually increase the water temp to about 80 F. This will speed up the lifecycle of the parasite. Once all the spots have dropped off the fish, you can use a commercial ich treatment. Look for one in the aquarium section of the local Petco. Follow label directions carefully. If you have just a few fish in the tank, you can remove them to a separate tank after the spots have dropped off. Leave the main tank empty for 4 days at 80 F. The ich parasite cannot survive without fish, so they will die. After 4 days, perform a partial water change, vacuum the substrate, wipe down tank furniture and return the water temp to normal. Acclimate the fish to water temp before returning them to the water.
Updated on August 12th, 2025
- 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
My 8 year old comet esco is getting these white spots on his back. He is a white spot survivor, but this does not look like white spot. In the pictures below, their is a shiny pink/ white growth on his tail, head back fins ect. He is eating and s
It could be early ich (white spot) infection or another infection (bacterial or fungal). To be safe, separate him into a quarantine tank and monitor for any change. You can treat for ich as you did it in the past if indicated. Bacterial and fungal infections have different treatments, so I would be hesitant to recommend a specific medication without more information or a definitive diagnosis. You can use plain aquarium salt (NOT table salt or Epsom salt). As a general tonic to reduce stress, increase gill function, treat minor infection of many types and to aid in recovery. This can be added to the quarantine tank at 1 teaspoon per gallon of water. Treat for 10-14 days then reassess the condition.
Updated on August 12th, 2025
