coral bleaching

skinz78 · 03/27/2007, 09:38 PM

I have recently added a tek t5 six bulb florescent to my tank and my acropora's are bleaching. None of my other corals are though? the light is hanging about 4" above my tank is this too close?

thanks,
Chris

skinz78 · 03/28/2007, 05:09 PM

any suggestions??

BurntOutReefer · 03/28/2007, 05:45 PM

move the coral down for awhile....(or...move the light up)....might be getting too much light

clowninaround74 · 03/28/2007, 06:15 PM

if this happens will the coral eventually get used to it and color back up or are the effects permanent???

five.five-six · 03/28/2007, 06:28 PM

try shortening your lighting cycle for a a few weeks or not running all the lamps.. this can also happen when you replace the lamps as new ones can be much brighter than warn ones

they may adjust to it or they may die. abrupt lighting increases can be very bad

mushumatt · 03/28/2007, 07:02 PM

If you can move the acros to the bottom when you seem there polyps extending bring them up a little on the rock work until you find a suitable place you like them and will be suitable to there needs. Also you can try putting like 10 sheets of wire screen over your tank and each week pulling a sheet off.

skinz78 · 03/28/2007, 09:37 PM

thanks for the advice,
I have moved the corals down a bit and they seem to be doing better but they are still white. like I said in my initial post my light is about 4" above the tank does anyone think this is too close? my live rock is about 5" from the top of the tank and I want to put the sps's on the top as none of my corals seem to like it there? My lighting cycle is now 10hr a day is this average?

thanks again,
Chris

mushumatt · 03/29/2007, 06:02 AM

Yea your lighting cycle sounds fine. Mine is at 12 hours. But slowly bring them up the rock work until you get them to where you finally want them. and in the long term the SPS will need prunning at that level

03/27/2007, 09:38 PM	#1
skinz78 Moved On Join Date: Mar 2002 Location: north west washington Posts: 1,283	coral bleaching I have recently added a tek t5 six bulb florescent to my tank and my acropora's are bleaching. None of my other corals are though? the light is hanging about 4" above my tank is this too close? thanks, Chris

03/28/2007, 06:15 PM	#4
clowninaround74 Registered Member Join Date: Jun 2005 Location: Denver Posts: 1,149	if this happens will the coral eventually get used to it and color back up or are the effects permanent??? __________________ -Randall- What? You pooped in the refrigerator? And you ate the whole... wheel of cheese? How'd you do that? Heck, I'm not even mad; that's amazing. -Ron Burgundy- Current Tank Info: 60 gal cube

03/28/2007, 06:28 PM	#5
five.five-six Registered Member Join Date: Mar 2007 Location: Corona Posts: 7,827 Blog Entries: 6	try shortening your lighting cycle for a a few weeks or not running all the lamps.. this can also happen when you replace the lamps as new ones can be much brighter than warn ones they may adjust to it or they may die. abrupt lighting increases can be very bad __________________ Originally posted by yellowslayer13: "I hate that hole" Current Tank Info: SCMAS Member 225 peninsula euroreef RS180 Apex 400W X 3 20k radiums / Spectra mixed SPS Last edited by five.five-six; 03/28/2007 at 07:03 PM.

03/28/2007, 07:02 PM	#6
mushumatt Registered Member Join Date: Feb 2006 Location: West Chester Posts: 670	If you can move the acros to the bottom when you seem there polyps extending bring them up a little on the rock work until you find a suitable place you like them and will be suitable to there needs. Also you can try putting like 10 sheets of wire screen over your tank and each week pulling a sheet off. __________________ Lets Go Mountaineers WVU Audi Sport/ACNA/NEQ Current Tank Info: 40 BR w/20L sump

03/29/2007, 06:02 AM	#8
mushumatt Registered Member Join Date: Feb 2006 Location: West Chester Posts: 670	Yea your lighting cycle sounds fine. Mine is at 12 hours. But slowly bring them up the rock work until you get them to where you finally want them. and in the long term the SPS will need prunning at that level __________________ Lets Go Mountaineers WVU Audi Sport/ACNA/NEQ Current Tank Info: 40 BR w/20L sump

03/28/2007, 05:09 PM	#2
skinz78 Moved On Join Date: Mar 2002 Location: north west washington Posts: 1,283	any suggestions??

03/28/2007, 05:45 PM	#3
BurntOutReefer Registered Member Join Date: Nov 2005 Location: Granada Hills Posts: 4,376	move the coral down for awhile....(or...move the light up)....might be getting too much light

03/28/2007, 09:37 PM	#7
skinz78 Moved On Join Date: Mar 2002 Location: north west washington Posts: 1,283	thanks for the advice, I have moved the corals down a bit and they seem to be doing better but they are still white. like I said in my initial post my light is about 4" above the tank does anyone think this is too close? my live rock is about 5" from the top of the tank and I want to put the sps's on the top as none of my corals seem to like it there? My lighting cycle is now 10hr a day is this average? thanks again, Chris