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Old 03-26-2005, 04:02 PM   #1
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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??

-50gal tank
-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
-fire fish
-12 or so hermits
-50-60 nassairus snails
-about 12 turno snails
-emrald crab
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Old 03-26-2005, 04:24 PM   #2
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Join Date: Mar 2004
Location: Prosper, TX.
Posts: 1,297
No lighting is required for reef rubble in the sump. Total lr should be 1-2 lbs per gallon. You want to put as much reef rubble in the sump as you can as long as it is submerged. If it can't completely be submerged, then use an amount that can. If you have left overs, you can always put it in the main tank for more bio. HTH

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balls, bio, bio balls, live, live rock, rock

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