How strong is my lighting ?


My lighting is 8x39w(4x420nm 4x460nm) T5
mixed with 3x 150w MH 10k
(Current USA 72 inch Outer Orbit 3x150w 10K HQI-MH w/ 8x39W T5 HO & 24 Lunar Lights)
I am planning to put two 3.5'' maxima clams in the sandbed. The tank is 29'' tall, with glass cover
will this be enough lighting for them?


Active Member
MH 150w about 10,000 Light intensity each
T5-HO 39w about 3000 Light intensity each


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I was reading on some old www somewhere a debate about light and one thought was that once the light makes it into the top of the water that it would travel very far before losing much intensity like a fiber optic cable. The other side said that after a foot there was some loss.
I have never had a tank that deep. So I really don’t know but,
I keep Crocea cams at 24 inches deep under a 150w MH and two-64w PC and you could put Maxima clams up in the rocks.