Butterflyfish

Butterfly Fish Care: Tank Setup, Feeding, & Water Quality Guide

Learn how to care for Butterfly fish recommended diet and tank setup. Find the right food, supplies and equipment at your neighborhood Petco.

Updated on April 9th, 2026

Advanced Boxfish & Cowfish Care: Ultimate Tank Setup, Food, & Safety

Learn how to care for Boxfish & Cowfish, recommended diet and aquarium setup. Find the right food, supplies and equipment at your neighborhood Petco.

Updated on April 9th, 2026

Clownfish Care: Your Easy Guide to Tank Setup, Food & Compatibility

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

Updated on April 9th, 2026

Master Small Marine Fish Care: Tank Setup, Food, & Compatibility Guide

Small Marine Fish are favorites with marine aquarists and includes a wide range of species.

Updated on April 9th, 2026

Build Your Thriving Saltwater Tank: Easy Setup for Marine Life

Learn how to set up a saltwater fish tank and key considerations regarding placement, supplies needed, and the overall set up process.

Updated on October 23rd, 2025

What fish and supplies are best for a beginner's small tank?

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

What are easy, small pets for beginners? Is a cowfish a good choice?

The Cowfish, or Longhorned Boxfish, is a marine species that should be kept only by experienced aquarists. When stressed, they can release toxins into the water which may harm tank mates. Pacman frogs, leopard geckos, corn snakes or bearded dragons are all easy to keep.

Just got a small fish. What breed is it and how do I care for it?

Thanks for reaching out about you fish. It is believed to be a Comet goldfish. Water quality and nutrition is the key to success. Testing water parameter for pH, ammonia, nitrite and nitrate will give you guidance for a healthy environment. Purchased food should be rotated out every 3 months as vitamin C and other nutrients degrade over time. Trying to maintain water temperature can be challenging with out a heater, but most fresh water fish tolerate some changes. Good luck.

Why is my cichlid fish faded, breathing heavy, but still eating?

Hi, and thanks for your question. This is a quite generic presentation and a logic approach is needed. Begin by submitting a water sample for quality testing. Most pet stores will do this for free or a nominal fee. Clinical examination should always include a water quality check, even if you have done so already. Water testing should be performed with a quality test kit, measuring NH4, NO2 and NO3. High ammonia levels, PH imbalances may be responsible for these signs. Oxygen concentration and quality of the filters should be determined as well. If water quality is good and there are no major imbalances, your fish should get examined to look for any sign of bacterial/fungal infection and eventually water should be treated. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our servi

My yellow fish has blue eyes & stays at the top. What is it?

The fish that you are describing is Apolcheilus lineatus commonly known as the Golden Wonder Killifish. By looking at the images that were attached it appears to be a male (females are typically less colorful ).