I am just beginning with a 20 gallon saltwater tank to get used to how it all works. Got a couple of quick questions though.
I have Crushed coral in the tank at the moment. Can I or do I put live sand on top of the crushed coral? Or is it better to use either one or the other instead of both?
Thanks in advance,
p.s. I am putting the 20 gallon together so I can have it as my quarantine tank, when I get my 150 gallon tank eventually setup. Once I start that process I will have a lot more questions if you don't mind.