I got my 150W MH
today as you can see from the pic above.
I was unsure what height to mount it at currently i've got it at about 1.2ft from the top of the tank and it's not as bright as i thought it would be.
would lowering it fix this ? and what would be a safe height to lower to ?
also i was dissapointed at the colour of the light it almost makes my water look a greeny yellow colour but looking at the light itself it is white, would getting a higher kelvin rating globe change the colour much the current globe is 10,000k