T5HO overpowering MH Lights

[daniella3d]

dunno about 150 watt but I have 250 watt MH 14,000k and nothing will overpower that. It does not even make much difference if I light up the T5 or not.

Maybe something is wrong with your ballast?

Originally Posted by MarkoD

i just put two 150 watt MH (300 watts total) lights with 20000k bulbs on my tank and took off most of my t5s

turned them on and thought they were kind of dim.

been on for an hour now and they still seem dim. and when i turn on the T5HO lights that i left on (170 watts total) it completely overpowers the metal halides to the point where i cant even see the shimmering at all.

what gives?