This is quite bright.........

despite washing its silted the water, which I hope will settle out ????

Are ther any 'water polishes' safe for marine use ???



"Dragon Slayer" wrote in message
...
the oyster shell (assuming its the crushed type you pick up at the local
co-op) will separate and come to the top of the sand and it most of the
time
has a dark (or gray) coloration to it so it is not as attractive as the
white crushed coral.

but its no harm using it.


kc

"RNP" wrote in message
...
I have just set up my latest marine tank using a crushed oyster shell
and
sand mix............ Is this going to be ok ??

It's only a thin layer of course. My other tank uses coral grit but I
fancied a change......... Just wondered if anyone has any thoughts on
this