i have 3 gold fish and 1 has got really big and sits still in the tank?

Question

if number 3 goes near 1 number 2 goes for it and pushes it and I dont know whats going on - please help. Fish one has ballooned up, fish 2 is a big fish anyway and fish 3 is smallish. Most of the time fish 2 just swims up and down the tank all day long unless 3 goes near 1 then it flips and chases it away and pushes it into the walls and caves around the tank

Answer 1

Your fish are sick :(

What size tank are they in? And do you know what kind of goldfish you have? And how often do you clean the water?

Goldfish are HUGE waste producers. They eat a lot and are poop machines. A fancy goldfish needs 20 gallons. So if you have 3 fancy goldfish, you would need a 60 gallon tank. Other types of goldfish can grow to 1-2 feet, and need to live in a pond, or a huge tank (200+ gallons)

Also, it is VITAL to do weekly water changes. Even in a large tank, 30-40% of the water should be replaced every week.

A ballooned up fish probably has the disease known as Dropsy. Dropsy isn't a disease in and of itself, but it is a symptom of something wrong in the tank; in this case it is probably a buildup of ammonia because the tank is too small, and infrequently cleaned.

Dropsy is almost impossible to treat, but you could try a course of Maracyn-2 or Maracyn.

Frankly, the best thing you could do would be to find a large tank, like 55-60 gallons, and putting your goldfish in that with some nice plants, and keep up with weekly water changes.

Answer 2

your fish may have hook worms in fish how long has it been like this. by the time u get this it may b too late FLUSH HIM