Dottybacks

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 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

Keep Feather Dusters Thriving: Habitat, Diet, & Water Care Guide

Learn how to care for Feather Dusters. Find the right food, supplies & 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

Triggerfish Care: Tank, Diet, & Compatibility for Aggressive Fish

Learn how to take care of triggerfish, recommended diet and tank setup. Find the right food, supplies and equipment at your neighborhood Petco.

Updated on April 9th, 2026

My saltwater fish has white spots on its fin. Is it ich? How to treat?

Thanks for reaching out about Dart and including photos. The lesions are not clearly visible in the pictures but by the description, could be parasitic as in salt water ich (cryptocaryon). A veterinary visit could provide diagnostic services, as a skin scrape and recommend a treatment plan. Other fish will be affected so treatment should include the entire aquarium. Good luck.

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.

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 fish are compatible with clownfish in a 36 gallon reef tank?

I would suggest either a Neon Goby, Yellowline Goby or Sharknose Goby (Elactinus spp.), Court Jester Goby (Koumansetta rainfordi) also make wonderful additions, A Small Basslet of the genus Liopropoma spp. or a Royal Gramma also should work well with your existing tankmates, and lastly another great group of fishes include Shrimp Goby of the genus Stonogobiops or Amblyeleotris. For shrimp goby, one bonded pair with their commensal snapping shrimp of the genus Alpheus makes a fascinating addition to smaller marine reef aquaria.

How can I tell the sex of my Dalmatian and silver Molly fish?

Hello, my name is Dr. Shines and I am happy to help. There's only one photo of the Dalmatian Molly and it looks female but it's blurry. Here's a link with a photo showing a male vs female live bearer (which include mollies, platies and guppies) https://www.fishlore.com/aquariumfishforum/threads/sexing-livebearers-with-pictures.169520/ I hope this helps and please feel free to reach out any time.