Help with my goldfish

Question

I got 5 and a 20 gal tank

is it good enough for them?

one keeps on pooping

and idk why

Answer 1

One goldfish requires a 20 gallon tank with 10 more gallons for each additional fish so you are very overstocked.  Your tank will be full of ammonia and your fish will suffer.  

**

Answer 2

goldfish are big waste producers...5 is way too much for 20 gallon...keep only 1 or max 2...depending upon their size...seriously they ll start dying in no time...Be sure to get a filter that is meant for a 200 gallon tank or over...trust me they need 10 times more circulation of water...cos they really messy...and return at least 3...also what kind of goldfish???fancy (double tailed) or common/feeder (single tailed)..either ways I would suggest 1...or get a tank twice the size of your current tank and keep 2..and then the filter will be again 400 or more...Penguin from Marineland is a very good filter brand...