Grow lights on aquarium?

[rldavisou]

Ok, so I was looking at lights on an auction site, and I noticed that MH lights described as "grow lights" (and we all know what they're really intended to grow) were way cheaper than any lights I've seen described as aquarium lighting. I saw a 250 watt MH for less than $100. Has anyone tried these lights, and if so, how much luck have you had using them to grow corals? I guess I could buy a new bulb that's designed for aquariums, and if I did that, it would still be cheaper than a fixture designed for aquariums. Any comments or tips or stories of horrific experiences would be greatly appreciated.

 

[rldavisou]

bump

 

[ifirefight]

Originally Posted by rldavisou
Ok, so I was looking at lights on an auction site, and I noticed that MH lights described as "grow lights" (and we all know what they're really intended to grow) were way cheaper than any lights I've seen described as aquarium lighting. I saw a 250 watt MH for less than $100. Has anyone tried these lights, and if so, how much luck have you had using them to grow corals? I guess I could buy a new bulb that's designed for aquariums, and if I did that, it would still be cheaper than a fixture designed for aquariums. Any comments or tips or stories of horrific experiences would be greatly appreciated.
A MH light is a MH light, 100 bucks will get you the fixture,ballast and bulb ...but not a bulb you want to use. So allow additional $$$$ for the correct bulb. I bought my MH 175 watt set-up from a local electrical supply place for 70 $$. It came with a 6500K bulb

POS and I upgreade to the 10K....but you get the idea.