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Product Guides
Activated Carbon for Aquariums: Get Crystal Clear Water & Healthy Fish
What is activated carbon and should you add it to your aquarium filter? Learn about activated carbon's uses, maintenance, and how to add it to your filter.
Updated on November 13th, 2025
New Pet
Goldfish Care Guide: Tank Size, Food, Water Quality for Thriving Fish
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
Home & Habitat
Blackwater Aquariums: Easy Setup & Benefits for Thriving Fish
Search Petco to learn about blackwater fish aquariums. We want to help you decide what lifestyle is best for your unique fish.
Updated on November 13th, 2025
New Pet
10 Best Schooling Fish: Care & Setup for a Thriving Aquarium
Choosing the right schooling fish is essential to creating a thriving freshwater aquarium. At Petco, we carry a wide variety of small and large schooling fish great for any aquarium.
Updated on November 13th, 2025
New Pet
Ultimate Large Marine Angelfish Care Guide: Setup, Diet, Companions
Learn how to take care of Large Marine Angelfish, recommended diet and tank setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on November 13th, 2025
Food & Nutrition
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
My fish is acting sick. He is not really eating and he keeps going to the surface to breathe . He is also getting these little what looks like panic attacks and swims very fast and even hits his head constantly on the edges of his tank. I started to
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 August 12th, 2025
Health & Wellbeing
My 10 gal freshwater tank has been infected with ich. I am treating the tank, but still my fish are dying. If I were to just clean it out and start over with fresh water, new substrate, and a clean tank, would that get rid of the ich? Can I clean it
First, perform a partial water change, vacuum gravel thoroughly and wipe down any tank furniture. This is critical because clean water is the cornerstone for treatment and recovery. Use only conditioned water that is temperature matched to prevent stress or shock. Next, you can use any one of the commercial ich medications, such as Ich Guard (Tetra), Super Ick Cure (API) or Rid Ich Plus (Kordon). These can be found in the Aquarium section of the local Petco. Follow label directions carefully. This method will typically work with most fish. Another option would be to use plain aquarium salt ( NOT table or Epsom salt). Dissolve 1 tablespoon of salt per 5 gallons of water in a cup or two of tank water and gently pour it into the tank. At the same time, gradually increase the water temp to about 86 F. Hold it there for 14 days. The warm temps will speed up the life cycle of the parasite and the salt will kill it. Afterwards, gradually reduce water temp and perform another partial water ch
Updated on August 12th, 2025
Health & Wellbeing
Which fish and plants suitable in planted tank (75 litre ) ?....And which substrate use are.....And how to medication apply for Discus and tetra fish in planted tank without harm to plants and biological filter ?
Java Moss, Java Fern, Anubias and Amazon Swords are among the easiest live plants to care for and cultivate in an aquarium. You can use aquarium soil or aquarium sand depending on the species of plant(s) chosen. When medicating fish, it is best to remove them to a hospital or quarantine tank. This will spare live plants as well as beneficial bacterial populations, especially if an antibiotic is used. Medicated food is also an option.
Updated on August 12th, 2025
Health & Wellbeing
hi! I have gold fish in a tank and after doing a 20% water change my fish seems to be in shock just sitting at the bottom of the tank... could it be the PH level change? please help me!
It may be the pH change or other change in water chemistry. Use a home test kit to check water quality. Make adjustments as indicated. It may also be a response to a temperature change. Check water temperature and increase the heat if necessary, just don't forget to turn it down or off once the temp is within range.
Updated on August 12th, 2025