live rock in sump /any problem with that

newfishliny

Member
I have a 90 reef with some fish and I think I would like to make a little more elbow room for them , not many but I can see it would make it better for them .So I would like to put 20 - 30 lbs of rock in the sump , does there need to be light for the rock.
thanks
new fish
Don
 
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