redhumps? depends compared to what, they are more aggressive than Satanoperca and things like that, but I mixed my male with severums, acaras, firemouths, and similarly placid species.
japes my 30 arguaia fry have white spot :-|.
the parents are doing well though.
i even have 2 200w heaters in the fry tank :-O/
damn winter and aquaworld