no i dont really wanna do a biotope and yes the clowns are for the 100Ok. sounds good. Do you want to do a biotope?
I can recommend light's, substrate etc.
You can do corys in this one if you want.
for the 100? They get too large for a 75 but will be ok in a 100. AS long as the 100 is 5ft+ you should be ok.![]()