I'm looking to add about 20lbs to my tank which is up & running with 2 clowns and some live rock. I know when add the sand it get extremely murky and a foamy substance on the top of the water. Is this harmful to my fish? How should I go about putting it in? Also, I do have snails I'm assuming they can be covered with the sand? It's a mixture of snails
Side note: all rock will be taken out
Side note: all rock will be taken out