light question

Jim_Leyland · 03/18/2008, 08:16 AM

im upgrading my lights from pc to 175watts on a 29g, how long should i leave the mh on so i don't fry the corals till they get used to it? also should i keep it off the water more that my pcs? right now i have some zoas/pallys, gsp, kennya tree, toadstool and some pompom xenia.. a few misc shrooms .. i was thinking of going with a XM bulb 14k.. if anyone has ever used these bulbs let me know how they hold up ( lenght of use and hows the color on em) ive never used Mh before so i don't know alot about it.. thanks
~ Jim

rbursek · 03/18/2008, 08:59 AM

Do the Mh slowly over a week to 10 days, maybe 6hrs adayy for the first 3 or 4 then 1/2 increments evety 2 days till you get to 8-9 hrs, monitor your corals for bleaching, and hold of increases or move corals lower if needed.

mwwhite · 03/18/2008, 10:00 AM

You can also acclimate using several sheets of screen material, removing a layer each week. 3-4 layers/weeks should be OK. Another option, anyway.

rrcg50 · 03/18/2008, 07:50 PM

i used the screen method and removed a layer every 3 days. i started with 6 layers and the first two stayed on 1 day then the next 4 3 days each. my corals all doing well. went from 400w pc to 2 250 w hqi. seems to be good so far . no bleaching or die off

03/18/2008, 08:16 AM	#1
Jim_Leyland Moved On Join Date: Jun 2006 Location: Kent, Ohio Posts: 924	light question im upgrading my lights from pc to 175watts on a 29g, how long should i leave the mh on so i don't fry the corals till they get used to it? also should i keep it off the water more that my pcs? right now i have some zoas/pallys, gsp, kennya tree, toadstool and some pompom xenia.. a few misc shrooms .. i was thinking of going with a XM bulb 14k.. if anyone has ever used these bulbs let me know how they hold up ( lenght of use and hows the color on em) ive never used Mh before so i don't know alot about it.. thanks ~ Jim

03/18/2008, 10:00 AM	#3
mwwhite Registered Member Join Date: Oct 2006 Location: Land O Lakes, FL Posts: 690	You can also acclimate using several sheets of screen material, removing a layer each week. 3-4 layers/weeks should be OK. Another option, anyway. __________________ gwen Current Tank Info: 150 Mixed reef (gone now)

03/18/2008, 08:59 AM	#2
rbursek Moved On Join Date: Jun 2006 Location: germantown,wi Posts: 2,339	Do the Mh slowly over a week to 10 days, maybe 6hrs adayy for the first 3 or 4 then 1/2 increments evety 2 days till you get to 8-9 hrs, monitor your corals for bleaching, and hold of increases or move corals lower if needed.

03/18/2008, 07:50 PM	#4
rrcg50 Moved On Join Date: Nov 2007 Location: venice, fl Posts: 1,294	i used the screen method and removed a layer every 3 days. i started with 6 layers and the first two stayed on 1 day then the next 4 3 days each. my corals all doing well. went from 400w pc to 2 250 w hqi. seems to be good so far . no bleaching or die off