light distance above the water

[enemec1]

how far should I have my lights above my water, 2 175w MH, 1 250w MH and VHOs this is on a 210g tank?

 

[frederickk]

I would say about 6 to 8 inches.

 

[Randy1]

I'm at 7 in. anything higher seems really dim.

 

[enemec1]

thanks for the quick response, another quick question, I am about to put the top of the stand on the frame I am using a 3/4 inch pice of plywood, is it ok to put the screws through the plywood into the frame under where the tank will sit and just counter sink the screws?

 

[AnimaliA]

<a href=showthread.php?s=&postid=9459569#post9459569 target=_blank>Originally posted</a> by enemec1
thanks for the quick response, another quick question, I am about to put the top of the stand on the frame I am using a 3/4 inch pice of plywood, is it ok to put the screws through the plywood into the frame under where the tank will sit and just counter sink the screws?

Thats what I have done...but countersink them at least 1/8in deeper than "flush" to account for any compression or warping that may happen. I did mine at 1/4...but after 3 years I think I would have been safe with 1/8.