2-250s or 3-150 watt MH?

bawla47 · 08/27/2006, 09:02 PM

would 2 - 250s cover enough light for a 100 galon tank- 60x18x20"

to grow sps decent?

id like to do 3-150s, but bulb changes will kill me, but i really like the pheonix 150 14k, not sure how the 250s will look.

anyhow i apreciate your input,

thanks in advance,

Jaymie

McCrary · 08/27/2006, 10:04 PM

I would go the 3x150 route. Having 250 watts on a 20" tall tank is a lot of light and may damage corals. You should also get better coverage with 3 bulbs.

dougie · 08/27/2006, 10:30 PM

id go the 250 watters, more light for your SPS, if thats to strong just raise the lights alittle higher from the tank. only 50w difference any way.

Jayreefer · 08/27/2006, 10:42 PM

I secound the 2x250. It will cover well. Plus the 250 14k phoenixare gret as well.

AZDesertRat · 08/27/2006, 10:42 PM

I have 2x250w XM 10k and 2x140w VHO Superactinics on my 100 G and it grows anything.

bawla47 · 08/29/2006, 10:21 PM

do you guys think about 6-7" above is ok? I built a canopy for my t5s originally, but since going to switch to MH, i planned on just cutting holes at the top, and running a nice looking reflector setup.

hahnmeister · 08/29/2006, 10:25 PM

I use 250s over 16" tall tanks.. no big deal. I was going to use dual 250s over a 6' long tank as well (euro-braced)... a 250watt can just barely cover 3' in length, although 2' is ideal, 2.5' each is easily do-able... esp with a tank that is 20" tall (Im talking 16-18" tall tanks in my case). Dual 250s would be my pick... and if you use 2 or 4 T5s to suppliment (48" long), you wont even notice.

08/27/2006, 09:02 PM	#1
bawla47 Premium Member Join Date: Jun 2005 Location: fort lauderdale, FL Posts: 2,190	2-250s or 3-150 watt MH? would 2 - 250s cover enough light for a 100 galon tank- 60x18x20" to grow sps decent? id like to do 3-150s, but bulb changes will kill me, but i really like the pheonix 150 14k, not sure how the 250s will look. anyhow i apreciate your input, thanks in advance, Jaymie

08/27/2006, 10:04 PM	#2
McCrary Can't Stop Time Join Date: Dec 2005 Location: Tucson, AZ Posts: 3,079	I would go the 3x150 route. Having 250 watts on a 20" tall tank is a lot of light and may damage corals. You should also get better coverage with 3 bulbs. __________________ Matt Patience is the best remedy for every trouble. Titus Maccius Plautus (254 BC - 184 BC), Rudens

08/27/2006, 10:30 PM	#3
dougie Registered Member Join Date: May 2006 Location: NSW AUSTRALIA Posts: 607	id go the 250 watters, more light for your SPS, if thats to strong just raise the lights alittle higher from the tank. only 50w difference any way. __________________ Steve Irwin, still my hero, and never forgotten. Current Tank Info: 210 gal, 7x2x2, LED, mp60's. mixed reef.

08/27/2006, 10:42 PM	#4
Jayreefer Registered Member Join Date: Apr 2006 Location: Peoria Az Posts: 2,022	I secound the 2x250. It will cover well. Plus the 250 14k phoenixare gret as well.

08/27/2006, 10:42 PM	#5
AZDesertRat Moved On Join Date: Jan 2002 Location: NW Phoenix Posts: 16,621	I have 2x250w XM 10k and 2x140w VHO Superactinics on my 100 G and it grows anything.

08/29/2006, 10:21 PM	#6
bawla47 Premium Member Join Date: Jun 2005 Location: fort lauderdale, FL Posts: 2,190	do you guys think about 6-7" above is ok? I built a canopy for my t5s originally, but since going to switch to MH, i planned on just cutting holes at the top, and running a nice looking reflector setup.

08/29/2006, 10:25 PM	#7
hahnmeister Moved On Join Date: Sep 2005 Location: Brew City, WI Posts: 10,156	I use 250s over 16" tall tanks.. no big deal. I was going to use dual 250s over a 6' long tank as well (euro-braced)... a 250watt can just barely cover 3' in length, although 2' is ideal, 2.5' each is easily do-able... esp with a tank that is 20" tall (Im talking 16-18" tall tanks in my case). Dual 250s would be my pick... and if you use 2 or 4 T5s to suppliment (48" long), you wont even notice.