ransley wrote:
....
Clean OK, but the gravel must be cleaned itself as gravel is dirty,
either way he has a mucky mess, gravel would scour the walls

'Pends on where it comes from but wouldn't be hard at all to rinse of a
small pretty small amount.

Scouring the walls is the idea--never thought of it, but actually it's a
pretty nice idea if the tank is rusty. Don't think it would matter much
for one that is simply varnished over the solvent of choice.

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