usally on a wood substructure you should have it checked for intergrity and like said already check your lease it may stated no fish tanks but ask your super some can be cool
it funny how i see this posts all the time and answer the same way the reason is because i lived in a apartment in a house where the hydro was included ,well guess what breeding retiles and being a fish nut caused the hydro bill to go beyond 300.00 bi-monthly super freaked and gave me an eviction notice real fast lol .
now i live in a concrete high rise hydro included i'm waiting for cops to come to the door with drug dogs now lol
didnt mean to derail your thread just giving you a heads up when renting be carefull.