MH placement

[iseeweed]

I just fired up these halide pendants tonight. They both are 250de 14k hamilton bulbs. The one on the left is a magnetic ballast, and the one on the right is an electronic. I have them at 9 and 10 inches above the water line. I kinda feel they should be closer to the water line?? I am planning to try to grow some sps stuff.
Any suggestions from someone with a sim. tank??

 

[Anonymous]

um, what reflectors and what sized tank? My glass on my lumenarc minis is about 5" above the water.

B

 

[iseeweed]

The light on the left is an aquamedic(top pic), and the one on the right(bottom pic) is a hello-lights DIY pendant.

 

[fungia]

you will need to try different heights because it is a different reflector. it is hard to say without trying. you can always have one lower and one higher and keep more light loving corals on the brighter side.

 

[iseeweed]

Agree fungia, also noticed quite a difference between the looks of the magnetic and electronic ballast. I looks like the magnetic ballast burns the bulb brighter? Or maybe it is just the reflector??? Both bulbs are identical 14k hamiltons.