I got a 3foot and a 4foot tank sitting sidby side upstairs, Total weight of tanks , rocks and stands would be aroun600KG i think
And its not the stongest floor.lol
Just copied from another thread.
Tank is a 25cm cube.
Has 1 male Betta(with a nest and fry)
And 3 females.
And alot of Malayan trumpet snails.
I will also post pics of my 300L Planted South American/discus setup was its setup.