Distance from water for light

Steelerfan101 · 07/05/2012, 11:33 PM

Hi I was wondering how high I should have my 250 W metal halide and 4x24 W t5 actinic lights I should have off my 29 gallon reef. I want them high enough off the top to not heat the water up. I will have a cheapo Wal-mart fan in the sump area to keep things a bit cooler. So, with the fan, how high should I have the light off the top?

Chaotic Reefer4u · 07/06/2012, 12:32 AM

Good evening steeler fan, with your 250w. Halide on a 29 gallon id say 12 inches. Hope this helps. . .

bnumair · 07/06/2012, 06:57 AM

most commonly 12" above water line for a wider spread.

bnumair · 07/06/2012, 06:58 AM

most commonly 12" above water line for a wider spread.

SNAKEMANVET · 07/06/2012, 08:24 AM

12'' From water surface would be best.I have a 250 over my 28 jbj at 12'',and no problem with temps.

07/05/2012, 11:33 PM	#1
Steelerfan101 Registered Member Join Date: Jun 2012 Posts: 149	Distance from water for light Hi I was wondering how high I should have my 250 W metal halide and 4x24 W t5 actinic lights I should have off my 29 gallon reef. I want them high enough off the top to not heat the water up. I will have a cheapo Wal-mart fan in the sump area to keep things a bit cooler. So, with the fan, how high should I have the light off the top?

07/06/2012, 12:32 AM	#2
Chaotic Reefer4u ♥Acropora Aficionado♥ Join Date: Jul 2004 Location: Hollister,Ca. Posts: 5,163	Good evening steeler fan, with your 250w. Halide on a 29 gallon id say 12 inches. Hope this helps. . . __________________ Live everyday as if it was your last, take time to smell the flowers, enjoy all things living, never take anything for granted, you just never know when your number might be up... Current Tank Info: * 90g. Reef Ready TruVu tank with 30g. Platinum Filtration Series Sump SpS Acro enthusiast *

07/06/2012, 06:57 AM	#3
bnumair Dr. Reef at ur service Join Date: May 2009 Location: Tulsa, Ok, USA Posts: 7,751 Blog Entries: 15	most commonly 12" above water line for a wider spread. __________________ Water Quality: NO3 0,Phos 0,Cal 440,Alk 7.5,Mag 1300 "Reef Fast, You Crash, Reef Slow, You Pass" Mike's Reef 3:16 Current Tank Info: 350g DT,95g sump, 50g Frag tank, 4800gph return 4x Sea swirls. 6x AI Vega Color. 200# Pukani rock, dual recirculating skimmer, Biopellet, GFO Carbon rx's, Cal rx. Closed loop. 1.5hp chiller, genesis renew. Apex & RKE

07/06/2012, 06:58 AM	#4
bnumair Dr. Reef at ur service Join Date: May 2009 Location: Tulsa, Ok, USA Posts: 7,751 Blog Entries: 15	most commonly 12" above water line for a wider spread. __________________ Water Quality: NO3 0,Phos 0,Cal 440,Alk 7.5,Mag 1300 "Reef Fast, You Crash, Reef Slow, You Pass" Mike's Reef 3:16 Current Tank Info: 350g DT,95g sump, 50g Frag tank, 4800gph return 4x Sea swirls. 6x AI Vega Color. 200# Pukani rock, dual recirculating skimmer, Biopellet, GFO Carbon rx's, Cal rx. Closed loop. 1.5hp chiller, genesis renew. Apex & RKE

07/06/2012, 08:24 AM	#5
SNAKEMANVET PREMIUM MEMBER Join Date: Jul 2005 Location: TRENTON Tn Posts: 4,486	12'' From water surface would be best.I have a 250 over my 28 jbj at 12'',and no problem with temps.