bio balls to live rock rubble... How much needed??
I have a 50gal tank. I just replaced my wet / dry filter with a 20gal tall sump / refugium all in one....I just replaced my crushed coral substrate with about 60 lbs of sand. I have about 10 lbs of live rock. My sump / refug still has the bio balls that were in my wet dry. I would like to replace these with live rock rubble.
Does the live rock rubble need light?
How much live rock rubble will I need??
-20gal tall sump / refugium.
-About 15-20 lbs of live rock
-60 lbs (3") of sand.
-2x65w power compact lights
-2x18w power compact in the refug.
-bak pak 2R
-3 LARGE feather dusters all differebt colors
-orange spotted goby
-12 or so hermits
-50-60 nassairus snails
-about 12 turno snails