Too much light for a frag tank? 8x54W T5's

rbrusletto · 10/27/2008, 01:03 PM

So I'm starting to wonder about my T5 setup and if I have too much light

55G 4 foot tank, with two tiers of frag racks.

8x54W of T5 (46.5" bulbs), currently half on for 12h, other half for 11h.
Fixture uses standoffs for the light to sit 6" above water level.

bulb setup is 3 10k, 1 12k and 4 actinic

nikon187 · 10/27/2008, 02:20 PM

how did you fit 8 bulbs above a 55g if you need 2.5" for each bulb? what are your 55's demensions?

rbrusletto · 10/27/2008, 04:34 PM

Tank is 4 foot, light is 4 foot, bulbs are 46.5"

Apparently it's not the best light( single reflector for all bulbs)

but it works and the cheap price was right.

NanoReefWanabe · 10/27/2008, 05:55 PM

since your using one large reflector you should be fine...if those where individuals you would probably cook them a bit for a while...the coral would acclimate to it eventually either way i would think...i have seen 250mh over ten gal tanks..

10/27/2008, 01:03 PM	#1
rbrusletto Registered Member Join Date: Jul 2007 Location: Denver, CO Posts: 239	Too much light for a frag tank? 8x54W T5's So I'm starting to wonder about my T5 setup and if I have too much light 55G 4 foot tank, with two tiers of frag racks. 8x54W of T5 (46.5" bulbs), currently half on for 12h, other half for 11h. Fixture uses standoffs for the light to sit 6" above water level. bulb setup is 3 10k, 1 12k and 4 actinic

10/27/2008, 02:20 PM	#2
nikon187 Registered Member Join Date: Jul 2008 Location: Edmonton Alberta Posts: 4,717	how did you fit 8 bulbs above a 55g if you need 2.5" for each bulb? what are your 55's demensions? __________________ ----------------- Current Tanks: New 210 custom 84 x 24 x 24, 60g sump, SWC 250 extreme with bubble blaster 5000, 2 vortech mp40, 2 vortech mp10, 12 T5, Water blaster 5000, warner marine bio pellets, 60g clownfish cube, red carpet anemone with a 25g sump,SRO octopus 1000sss, 250w radium, lumenarc large.

10/27/2008, 04:34 PM	#3
rbrusletto Registered Member Join Date: Jul 2007 Location: Denver, CO Posts: 239	Tank is 4 foot, light is 4 foot, bulbs are 46.5" Apparently it's not the best light( single reflector for all bulbs) but it works and the cheap price was right.

10/27/2008, 05:55 PM	#4
NanoReefWanabe Registered Member Join Date: Oct 2006 Location: Barrie, Ontario, Canada Posts: 6,639	since your using one large reflector you should be fine...if those where individuals you would probably cook them a bit for a while...the coral would acclimate to it eventually either way i would think...i have seen 250mh over ten gal tanks..