Originally Posted by adam petty
Sorry to jump in on this. Are aqua beam 600 leds lighting any good then? For corals? Thanks
Those fixtures use Cree LEDs, which are good LEDs, but their claims seem to be way too optimistic. .6 watts per gallon for hard corals is pretty misleading. Most of their fixtures are 60-90 watts total. The Cree LEds are more efficient than most, but not this efficient. I would suggest this fixture for only a smaller tank, like a 30-50 gallon. I have a PAR meter and measure PUR. The cheaper fixtures without lenses are only good for shallower tanks, while those with built in lenses work great for deeper tanks. I haven't tested but a few popular fixtures and can tell you there is variation, but you can do a hard coral tank with inexpensive LEDs, you just need more of them.