Smelly Goldfish!

[rutts]

I keep two goldfish in a small tank. I noticed that the water had gone extremely smelly and there was a jellefied substance in the tank. I cleaned the tank and everything in it but the next day the tank is going back to the same state. What could be the problem. I suspect some sort of bacteria but how do i get rid of it?
Thanks in advance.

 

[OohFeeshy]

What could be the problem

This?

I keep two goldfish in a small tank.

How big is small? Is it filtered?

 

[rutts]

The tank is the correct size for the fish and hasn't been a problem before (i know about the size of tanks and fish as i keep a tropical tank).
However i checked the tank a little while ago and it seems to have cleared up.

thanks for replying.

 

[OohFeeshy]

But you still haven't answered the original questions... Whats your feeding regime like, too? Ie, what sort of food, how often etc.

 

[debiasir]

for 2 goldfish your looking at 20g absolute minmum.

post the tank size, plants, substrate, watet tests results, maintenance schedule, feeding schedule and we will try and help

 

[RandomWiktor]

The words "small tank" and "goldfish" do not go together. Goldfish are not like tropicals; they require more gallons per inch of adult size, and immensely strong filtration. If you have two fancies, you're looking at a min. 30g tank, which I wouldn't call small. If you have two commons... I'd invest in a pond, because even in my 75g, two 7-in goldfish had some ammonia problems.
What's more, is the tank cycled with extra filtration and good aeration? It seems like a tank couldn't develop a gell on the surface if if had a strong current and bubbler.