lol the lights off is not going to bother anything in the tank unless its planted .. and the cat will fix that soon enough because they will get HUGE!!!!
as long as there is not live plants in the tank the lights do nothing for the fish .. its just so we can see them
and "special" Brownies are not going to have the protein the fish need to grow
dont turn the lights on at all for the next few days that will help .. but if he is still alive .. she should be just fine in the long run .. as long as he starts eating ..
What about my other fish? u think they are cool with the lights off?