Can anyone recommend a particular fluorecent tube for use on a macroalgae tank? I currently have Ulva lactuca, Chondrus crispus, and Chaetamorpha spp.

Currently, I have the plain-jane bulbs that came with the canopy. They're about 8 months old now, and I'd like to replace them with ones that are in the spectrum better suited to macroalgage - but I don't know what that range is.

Any suggestions?


Thanks,

RAS