New MH light

Grunion · 03/28/2009, 08:34 PM

Just got a new 400x2 mh light with 4pc lights and some moon lights. How do I acclimate my corals I have it about 12 inchs above my tank and my tank is 30 inches deep. as soon as I turned it on my corals all hid.

Grunion · 03/28/2009, 08:48 PM

I was thinking increasing the time in 15 to 30 minute increments a day.

kzickovich · 03/28/2009, 08:51 PM

drop your coral to the sand bed and slowly bring them up over a week also run your light in half day cycles to for a week or two depending how there taking it.

jbird69 · 03/28/2009, 09:16 PM

Quote:

Originally posted by kzickovich
drop your coral to the sand bed and slowly bring them up over a week also run your light in half day cycles to for a week or two depending how there taking it.

This is rarely doable when your corals are fused to the reef. You can do the photoperiod mod, or do the layered screen shroud. Just watch your corals closely, if they dont seem happy, its likely the light is too intense and just keep fiddling with one of the above techniques until theyre happy.

Grunion · 03/29/2009, 08:11 AM

Quote:

Originally posted by jbird69
This is rarely doable when your corals are fused to the reef. You can do the photoperiod mod, or do the layered screen shroud. Just watch your corals closely, if they dont seem happy, its likely the light is too intense and just keep fiddling with one of the above techniques until theyre happy.

what is a photo period mod?

abulgin · 03/29/2009, 09:00 AM

A cheap, easy, no-fail method is to use window screening, mentioned above. Go to Home Depot or some other local hardware store and buy enough window screening to make about 5 sheets as long/wide as your tank. Cut out the 5 sheets and lay them over your tank (you'll need to tape each one down with duct tape). Then, keep your new lighting at your current photoperiod and remove one screen every other day.

This way, you don't have to worry about setting your timers every day, etc., and screen is cheap.

By the way, what type of lighting was replaced?

jbird69 · 03/29/2009, 09:04 AM

Quote:

Originally posted by Grunion
what is a photo period mod?

Modify your photoperiod... Shorten the time the lights are on....

Grunion · 03/29/2009, 10:23 AM

they lights I had were pc's

03/28/2009, 08:34 PM	#1
Grunion Registered Member Join Date: Mar 2009 Location: Phoenix AZ Posts: 125	New MH light Just got a new 400x2 mh light with 4pc lights and some moon lights. How do I acclimate my corals I have it about 12 inchs above my tank and my tank is 30 inches deep. as soon as I turned it on my corals all hid.

03/28/2009, 08:51 PM	#3
kzickovich Registered Member Join Date: Sep 2007 Location: Zion Il Posts: 959	drop your coral to the sand bed and slowly bring them up over a week also run your light in half day cycles to for a week or two depending how there taking it. __________________ Ken Current Tank Info: 90 Gal mixed reef 55 Gallon basement pump up Sump 25 Gal fuge 2 Mp40 DIY led light fixture Bubble King Mini 200 Gen2 skimmer BRS Duel reactor

03/28/2009, 08:48 PM	#2
Grunion Registered Member Join Date: Mar 2009 Location: Phoenix AZ Posts: 125	I was thinking increasing the time in 15 to 30 minute increments a day.

03/29/2009, 09:00 AM	#6
abulgin Registered Member Join Date: Jul 2007 Location: Baltimore, MD Posts: 2,664	A cheap, easy, no-fail method is to use window screening, mentioned above. Go to Home Depot or some other local hardware store and buy enough window screening to make about 5 sheets as long/wide as your tank. Cut out the 5 sheets and lay them over your tank (you'll need to tape each one down with duct tape). Then, keep your new lighting at your current photoperiod and remove one screen every other day. This way, you don't have to worry about setting your timers every day, etc., and screen is cheap. By the way, what type of lighting was replaced?

03/29/2009, 10:23 AM	#8
Grunion Registered Member Join Date: Mar 2009 Location: Phoenix AZ Posts: 125	they lights I had were pc's