I'm running 4x65 PCs on my 110 tall tank...looking to possibly upgrade to MH
in the future. I'd like to do some research on them first. I've always owned NO
Can someone point me to a link with good info on MH
lighting? I'm just confused by the different types of MH
lamps I've seen, plus don't really understand the whole 'retro kit' thing other than it can be mounted in the canopy - but, I don't get how far away it from the water it needs to be, if I need acrylic or glass between the bulb and the water. Basically, too confused for a thread. Would like to research them but don't really know where to start.