35 cm (13 inch) oscar,s where agro the 25 cm (11 inch aprox) wild oscar,s was worse used to eat temp gages and break things and pick up drift wood and drop it on my 28cm pleco,s head then drop plants on it then cover them all in sand he was eveil and take large air stones and hoses of the tank wall and ram them against the wall and swin around with the stone and hose and 40cm veja,s busted a 4 foot tank, heaters and temp gages and the male killed every thing put in the tank including large females but im from australia so we arent alowed any good fish. ive been after snake head for a while did see a couple pop up but they didnt look very good quality at all so i passed