Lighting Question

lionfish1

Member
I recently bought MH lighting for my 20g tank. I bought this with the idea of using it on my 130g tank that is in storage at the moment. It's 2x150w is this too much lighting for my 20g it figures to about 15w per gallon. Please let me know your opinions.
:help:
 

wax32

Active Member
Your halides will heat a 20 gallon tank a lot. As far as too much light, it depends on what corals you keep.
 

wax32

Active Member
Make sure to start your zoanthids on the sandbed with that much light. You can gradually move them up. I assume this is a 20 long tank, like about 12" deep?
 

wax32

Active Member
I would hang that puppy about 15 inches above the water if it were me. If things seem to not be growing you can lower it.
 
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