if you look on the internet you can find anything. like plecos in 20 gallon and stuff like that. paradise fish would be too big in you tank, you might see some in the same tank as yours but that's just cruel.
nope, sorry to say but that rule is pretty bad. if i used that rule on my 20 gallon i would need something like a 35 gallon but really there doing quite well in the 20.
you dont need a 65 gallon tank.well you might but first what type of pleco is it. biobaby that rule is um..... just don't use it. like 4 angelfish in a 18 gallon nope, you need a 29 gallon for angles. 2 dwarf gouramis in a 6 gallon nope. YOU CANT PUT A 24 INCH PLECO IN A 36 GALLON TANK! that...