Its time to replace my bulbs, I'm currently running 2 x 250w 14k coralvue bulbs and 4 x 39w giessmann actinics. My problem is that the MH's does not give much spread so I want to replace 2 of the actinics with whites. I like the tanks colour as it is so should I replace the MH bulbs with 16k aquamedics or even 20k giessmanns? I've seen tanks that are still getting great growth with 20k MH's.
What ya'll think?
What ya'll think?