Water Care Deals

Master Aquatic Plant Care: Lush Aquarium Plants & Happy Fish

Tanks with live plants can be excellent additions to your home, bringing a touch of nature indoors. Learn how to take care of aquatic plants.

Updated on November 13th, 2025

New Pet

Mastering Koi Care: Optimal Tank, Food, Water Quality & Health Tips

Learn how to care for a Koi, recommended diet and aquarium setup. Find Koi for sale, supplies and equipment at your neighborhood Petco.

Updated on November 13th, 2025

New Pet

Complete Ricefish Care: Setup, Diet, & Habitat for Thriving Fish

Learn more about these slow moving fish and the care they need when added to your aquatic environment.

Updated on November 13th, 2025

New Pet

Grow El Nino Asian Water Ferns: Easy Aquarium Care Guide

Shop Petco for low-maintenance aquarium decorations like the El Nino fern. We want to help decorate your aquarium to keep your fish happy and comfortable.

Updated on November 13th, 2025

New Pet

Damselfish Care: Expert Tips for a Thriving, Healthy Fish Tank

Learn how to care for a Damselfish, recommended diet and aquarium setup. Find Damselfish for sale, supplies and equipment at your neighborhood Petco.

Updated on November 13th, 2025

Health & Wellbeing

I'm about to buy some new fishes mostly Tetra Can you help me what fish should I buy because I am beginner in this things. Please tell me what sort of things I should bring I have a one foot tank now other than that What should I purchase from Aquar

Before you buy any fish, you will need to set up the tank. A basic set up includes: a tank, filter, hood/light, heater, gravel and some decor. The tank should run without fish for at least 4 to 6 weeks. This gives it time to cycle. The Nitrogen Cycle is critical to the health of the tank and any fish you will be keeping. During this time, beneficial bacterial will populate the filter and substrate (gravel). These bacteria will be responsible for breaking down fish wastes and other wastes (uneaten food, dead plants, etc.). You will need a home test kit to monitor water chemistry (ammonia, nitrites, nitrates, pH) or you will have to submit water samples for testing. Most pet stores will do this for free or for a small fee. At first, you will see high levels of ammonia and nitrites. Over time, as bacteria grow, these levels will drop. When ammonia and nitrites are at 0 ppm and nitrates are below 20 ppm, you can consider adding fish. Regular (every 1 or 2 weeks) partial water changes as we

Updated on August 12th, 2025

Health & Wellbeing

Two of the fish fins are clamping down close to their body. I did 75% water change and hopefully they will get better. I do not have the water testing kit. Will buy soon. Is there any ways to get them better? I could see some of their scales are off.

Goldfish need powerful filtration. Your filter should be rated for at least twice the tank volume. Once you get a test kit, check the chemistry. Aim for 0 ppm ammonia and nitrites with nitrates at about 40ppm. Use a kit that has liquid reagents, not strips. The liquid kit is more accurate. The pH should range between 7.2-7.6. Being cold water fish, goldfish thrive between 65F and 72F. You can dissolve 1 teaspoon of plain aquarium salt (NOT table salt) per gallon of water to use as a general tonic. It will reduce stress, improve gill function, treat minor infection and aid in recovery. Treat for 10-14 days then reassess the condition of your fish. When performing partial water changes, treat only the volume of water being replaced not the entire tank volume. Change no more than 30% of the volume at a time. Use only aged or conditioned water that is temperature matched to prevent stress or shock.

Updated on August 12th, 2025

Health & Wellbeing

I dont know if you are a tropical fish specialist. But there is something going on in my tank and need help diagnosing it. My corydora has two raised growths ..one at the base of its fin. And one under the eye. My pleco seems a bit tattered too. A li

Thanks for reaching out about your aquarium and including photos. Did you test your water quality prior to the water change? Continue to test for pH, ammonia, nitrites and nitrates. Pristine water quality is needed for health. Are any of the fish new, that could have introduced parasites? Itching/flashing can be due to water quality, external parasites, bacterial or viral infections and other causes. The white lesions on the photo could be fungal infections. A skin scrape and examination under the microscope (at a veterinarian's office) is needed for an attempt to determine a cause. Fungal infections are often secondary problems, so check water quality first. Good luck.

Updated on August 12th, 2025

Health & Wellbeing

I have a few problems in my cichlids tank currently. 1. There are these tiny white gnat like flying bugs coming out of the water? 2. Brown algae on the glass won’t go away! But I have snails and an eel so I don’t know what to use that won’t kill the

Those could be copepods. They are typically harmless and difficult to completely eradicate. On the good side, they are a sign of a healthy tank and are useful in eating decaying matter in the aquarium. The brown algae can be due to insufficient lighting or lighting periods. You can wipe down the glass and plants, perform a partial water change and increase lighting. It can take weeks to month to resolve. Use only aged or conditioned water that is temperature matched to prevent stress or shock. Confirm stable water chemistry and quality. Make sure the water temperature is correct as well. Too warm or too cold can cause stress. Look the Jack Dempsey over for signs of injury or infection. Ich, bacterial infection or fungal infection can cause the fish too twitch or shiver. Plain aquarium salt (NOT table salt or Epsom salt) dissolved at 1 tablespoon per 5 gallons of water is a great general tonic that can reduce stress, improve gill function, treat minor infection and aid in any recover

Updated on August 12th, 2025

Health & Wellbeing

Hi my fish has just now been acting very strange. He seems to keep tipping over on his side so I think he’s not doing well. I just treated joker fish last week that died of fin and tail rot and used fungus Guard but that wasn’t supposed to hurt other

From your description, I think swim bladder disease is possible. There is a really thorough article that I will link below. When you check water parameters, it is important to make sure you also check nitrites and nitrates. Ideally, ammonia and nitrites should be zero and nitrates should be equal to or less than less than 40. If nitrates are zero, it indicates that your tank is not quite nitrogen cycled. If it is higher than 40, then you need to do at least a 50% water change. https://www.thesprucepets.com/swim-bladder-disorder-in-aquarium-fish-1381230

Updated on August 12th, 2025

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