for the 50 gallon... i want to do mangroves... some live rock... eventually maybe some frags... not real sure but i know i got the 50 gallon and 100 gallon rubbermaids for christmas (was at the parents house and they didnt hide them very well in the garage)
the 100 gallon sump will house live rock, heaters, macro-algae (in its own container to keep it in place) and possibly some GFO/Carbon reactors