Distance of MH's from Water Surface?

[Tim Marvin]

Mine are 6 inches

[dan]

Mine are 6 inches

are they 250's or 400's tim? i'm installing 3- 400's 10k on mine and thinking 6'' might be to close. i also have 8 tangs

[starboard]

3/250 and 1/400w all DE. If you have ever been to the Carribean you'll realize how intense the light really is. I'm with Aquadoc and want to keep most of the light in the tank.

[Brett Wilson]

I preferred my 400W radium 20,000K's to be 5-6" from the water. They also had glass splash guards on the pendants.
I'd run a 250W 10,000K at 7-8" with a splash guard.

I ran a 150W at 3" above the water, usually with a shield that I had to clean all the time.

I based my hight preference not on how bright they were in the tank, but on how much they messed with the temperature
Hope that helps!

-Brett

[technomex]

I was wondering the same thing. I have a 150 brick with 2 400W 14k MH bulbs at about 10 inches off of the water. I was considering dropping them some more but wanted to ask first.

[jaded]

Ya Jaded, WATCH THE SPLASH!!!!!!

Yeah Brad, the day you told me about the busted bulb, I splashed a little bit up from a rubberband popping... I got a scary sizzle but not bust. Lucky I guess

[Polkster13]

Were you drinking/dosing with vodka at the time?

[smelleybrad]

LOL, that %#$@ scared me to death! I had glass everywhere too! Then I realized the bulb wasn't even mine :sick

[jaded]

LOL... no vodka, I'm just naturally accident prone and I seem to slurr for no reason too ;)