How do you know if coral needs more light

ucdcrew · 01/14/2016, 08:02 PM

Started a candy cane on the sand bed. Its under LEDs. What are some indications it would need to go up higher?

thegrun · 01/14/2016, 09:39 PM

Generally when corals start to turn brown they need more light, when they start to bleach it can be from too much light.

ucdcrew · 01/14/2016, 10:29 PM

I can't tell. They're tan. Would it hurt if I tried to raise them just to see?

polaravic · 01/14/2016, 10:41 PM

IME, these corals are very low light corals and sensitive to LED"s. Your coral looks as blue as it is going to get and it is a very nice blue coral.

polaravic

rsain · 01/15/2016, 09:14 AM

^^ +1

I'm by no means a great coral expert. But those look happy.

Be patient and watch them. You'll notice changes over time that help you know what you need.

-ryan

ucdcrew · 01/15/2016, 11:16 AM

I dropped a rock on them yesterday so they're still a little ****ed. But if they look good there, I will leave them.

BrokenSpoke · 01/15/2016, 11:19 AM

I'd be angry too if you dropped a rock on me. Seriously though, the corals look great (actually really great) and I'd leave them where they are.

Slim_okrug · 01/15/2016, 03:09 PM

I would be more worried about gha you have. How are your PO4 and NO3 readings ? Heads seems a little closed. Have same coral but heads are alot more open. I haved gha problem few months back and heads on same corals were the same. After i get my phosphates and nitrates in check they are triving

01/14/2016, 08:02 PM	#1
ucdcrew Registered Member Join Date: Oct 2012 Location: Salt Lake City, UT Posts: 563	How do you know if coral needs more light Started a candy cane on the sand bed. Its under LEDs. What are some indications it would need to go up higher? __________________ If it weren't for gravity and law enforcement, I'd be unstoppable! Current Tank Info: 25g nano, working on new 65g

01/15/2016, 09:14 AM	#5
rsain Empiricism's Evangelist Join Date: Nov 2002 Location: Spokane, WA Posts: 119	How do you know if coral needs more light ^^ +1 I'm by no means a great coral expert. But those look happy. Be patient and watch them. You'll notice changes over time that help you know what you need. -ryan __________________ "The methods of science have been enormously successful wherever they have been tried. Let us then apply them to human affairs." - BFS "You can't fix with statistics what you buggered by design." - d Current Tank Info: They have water. Last edited by rsain; 01/15/2016 at 09:14 AM. Reason: Errant S

01/15/2016, 11:16 AM	#6
ucdcrew Registered Member Join Date: Oct 2012 Location: Salt Lake City, UT Posts: 563	I dropped a rock on them yesterday so they're still a little ****ed. But if they look good there, I will leave them. __________________ If it weren't for gravity and law enforcement, I'd be unstoppable! Current Tank Info: 25g nano, working on new 65g

01/14/2016, 09:39 PM	#2
thegrun Registered Member Join Date: Dec 2008 Location: Garden Grove, Ca Posts: 17,023	Generally when corals start to turn brown they need more light, when they start to bleach it can be from too much light.

01/14/2016, 10:41 PM	#4
polaravic Registered Member Join Date: Dec 2009 Location: North Vancouver, BC, Canada Posts: 74	IME, these corals are very low light corals and sensitive to LED"s. Your coral looks as blue as it is going to get and it is a very nice blue coral. polaravic

01/15/2016, 11:19 AM	#7
BrokenSpoke Registered Member Join Date: Sep 2004 Location: Parker, CO Posts: 564	I'd be angry too if you dropped a rock on me. Seriously though, the corals look great (actually really great) and I'd leave them where they are.

01/15/2016, 03:09 PM	#8
Slim_okrug Registered Member Join Date: Jul 2015 Location: Okrug Gornji Posts: 47	I would be more worried about gha you have. How are your PO4 and NO3 readings ? Heads seems a little closed. Have same coral but heads are alot more open. I haved gha problem few months back and heads on same corals were the same. After i get my phosphates and nitrates in check they are triving