It looks like garbage right now cause i've stirred up all the sand bed and was trying to vacuum some stuff out.
Plus i'm having problem with my hard corals suddenly dying which is what has got trying to look after my tank better.
I'm doing water changes approx every two weeks.
I have a 10 gallon sump underneath with a few hunks of live rock in there and lots of macroalgae
In terms of stuff in my sand i"m not sure what you mean. I have a sand sifting star in there. what else could live in there?
