23" Finnex 4x24 T5HO light output?

[FrankB1]

Over a 15g or 20g tank would this light be enough to keep some SPS and clam (Maxima or Crocea) happy? How does the light intensity compare to the Tek-light?

[eclecticvibe]

These don't have the individual reflectors like the tek light, so you lose quite a bit of light output. I don't think this fixture would be your best bet if you're intent on keeping sps/clams/anemones. People have been reporting success keeping these animals with the tek light fixture however. HTH