MH height Question.

[mark]

Sent a e-mail asking about height to PFO describing my tank and stating was planning on using 2x250W MHs, bottom of my pendants are at 6" based on their suggestion. With the pendants (DE bulbs) there's a glass cover between the bulb and the water.

[mr_alberta]

Also with the lights higher you get a wider spread, but a reduced PAR.