I think he's asking if Coco is in with other fish? and what size tank is he in?
I just heard the more water changes the better, so I do a change on my 5g. everytime I do the 2.5g's..also I'm like well my stuff is already out..so y not.
I do one change water only and one change with the gravel vac.
I do my 2.5g.'s twice weekly, so I assume a smaller tank is more..I'm sorry I dunno how much more?
Good luck with ur fish!