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Xaccers · 10-05-2005, 19:32

My dad's got himself a huge new fish tank.
It's got a large rock formation made from sponge.
Problem is, when he fills it with water, the sponge just floats.
He's tried squeezing it as much as he can to get the air out but it still floats off from the bottom.

Anyone got experience with this sort of thing and advice?

He's now emptied the tank and removed all the gravel, planning to let it dry out and glue the sponge to the bottom, but there must be a better way, surely?

Help!

10-05-2005, 19:32	#1
Xaccers cf.mega poster Join Date: Jun 2003 Location: Milling around Milton Keynes Age: 31 Posts: 11,899	Fishtank help needed My dad's got himself a huge new fish tank. It's got a large rock formation made from sponge. Problem is, when he fills it with water, the sponge just floats. He's tried squeezing it as much as he can to get the air out but it still floats off from the bottom. Anyone got experience with this sort of thing and advice? He's now emptied the tank and removed all the gravel, planning to let it dry out and glue the sponge to the bottom, but there must be a better way, surely? Help!