Derasa/squamish lighting

Jack_soho · 2026-09-25T02:56:55-0400

Hi, i was curious on what the lighting recommendations for either of these species that i would love to have in the future, i have a 75 gallon with 3 Ai prime 16Hd’s, about 14 inches from the waters surface, (i can lower them if need be) what do some of you more established clam owners think? i would love to hear any and all feedback!

also not quite familiar on how much PAR i’m working with… lol

Mr. Mojo Rising · 2026-09-25T07:16:32-0400

To me a prime is not a light that will keep a clam alive. Have you ever tested the par? How deep is your tank, the prime advertises 24" depth, but in reality I would say 18" depth is more realistic, so maybe it depends where you will place the clam.

Personally I would test the par first at least, I have a prime on my 15 gallon at 85% for mushrooms and zoa's, I'm skeptical with primes for a clam especially in a big tank like yours.

Jack_soho · 2026-09-25T13:20:08-0400

Mr. Mojo Rising said:
To me a prime is not a light that will keep a clam alive. Have you ever tested the par? How deep is your tank, the prime advertises 24" depth, but in reality I would say 18" depth is more realistic, so maybe it depends where you will place the clam.

Personally I would test the par first at least, I have a prime on my 15 gallon at 85% for mushrooms and zoa's, I'm skeptical with primes for a clam especially in a big tank like yours.

Here are some measurements, not sure on the PAR yet. I want to see if anyone has expirence with these lights and knows how much PAR they put out.