Too much light for coralline?

Mr31415 · 01/28/2007, 03:29 AM

In my 550l reef I have 8 x T5 54W lights. I see on the upper side of all my LR the colour is almost white - but on the sides and in my refugium I have tons and tons of pink coralline algae. I know my alk/calcium is not always sky high, but the huge amount of coralline I do have in the semi-shade suggests that alk/calcium is not an issue.

Is the reason I do not see lots of pink coralline on top of my LR due to bleaching (too much light)?

2swift · 01/28/2007, 05:04 AM

Im guessing that's around 145g american
But and I may be wrong but sounds like you have got better light in your fuge then your display at what my calcs say are 2.97w per gal in your display
just a thought

2swift · 01/28/2007, 05:32 AM

Sorry after reading I realised I did not answer the ?
To little light in the display is my opinion.

Mr31415 · 01/28/2007, 06:14 AM

Are you sure? My acropora and clams are growling like weed. In the main display like I said on the sides of the LR where there is *less* light the coralline is also growling like weed - and it has almost covered the back glass pane.

2swift · 01/28/2007, 06:19 AM

Trust me there will be others that will chime in here. weather I'm right or wrong.

jag1979 · 01/28/2007, 07:18 AM

I would say that there is definatly at least enough light. You should try to get your calcium up around 400, for both the corraliane and your sps/clams. what is your calcium, alk and mag levels?

I had a tank set up under pc's a few years ago...coraline everwhere. Now I have mh/t5 and it doesnt grow as much. So I think that too much light = slower growth

Mr31415 · 01/28/2007, 09:42 AM

The alk/calc levels are about 7dKH and 400mg/L. But like I say - I have LOTS of coralline algae... Just not directly under the light.

Dubbin1 · 01/28/2007, 09:49 AM

The light is not causing your problem. What it is for sure I don't know but it does not take a lot of light to grow coralline and I have never seen to much cause a problem. BTW I would up the Alk to at least 8dkh.

LOTUS50GOD · 01/28/2007, 10:25 AM

I have 1200 watts (HQI)over my tank and coraline grows everywhere... I honestly do not like it... takes away from the beauty of the rock IMO...

Mr31415 · 01/28/2007, 04:16 PM

Maybe it is my small urchin?? Thanks for the opinions...

01/28/2007, 03:29 AM	#1
Mr31415 Registered Member Join Date: Jun 2006 Location: Surrey, Canada Posts: 1,926	Too much light for coralline? In my 550l reef I have 8 x T5 54W lights. I see on the upper side of all my LR the colour is almost white - but on the sides and in my refugium I have tons and tons of pink coralline algae. I know my alk/calcium is not always sky high, but the huge amount of coralline I do have in the semi-shade suggests that alk/calcium is not an issue. Is the reason I do not see lots of pink coralline on top of my LR due to bleaching (too much light)?

01/28/2007, 05:04 AM	#2
2swift Registered Member Join Date: Aug 2006 Location: Ruskin,FLA Posts: 876	Im guessing that's around 145g american But and I may be wrong but sounds like you have got better light in your fuge then your display at what my calcs say are 2.97w per gal in your display just a thought __________________ Insanity: doing the same thing over and over again and expecting different results. Current Tank Info: 150g with twin FX4 canisters-Jebao 90Wave maker-2 AQUASKY Fluval Lights-AquaMaxx TS-2 Sulfur Denitrator

01/28/2007, 05:32 AM	#3
2swift Registered Member Join Date: Aug 2006 Location: Ruskin,FLA Posts: 876	Sorry after reading I realised I did not answer the ? To little light in the display is my opinion. __________________ Insanity: doing the same thing over and over again and expecting different results. Current Tank Info: 150g with twin FX4 canisters-Jebao 90Wave maker-2 AQUASKY Fluval Lights-AquaMaxx TS-2 Sulfur Denitrator

01/28/2007, 06:19 AM	#5
2swift Registered Member Join Date: Aug 2006 Location: Ruskin,FLA Posts: 876	Trust me there will be others that will chime in here. weather I'm right or wrong. __________________ Insanity: doing the same thing over and over again and expecting different results. Current Tank Info: 150g with twin FX4 canisters-Jebao 90Wave maker-2 AQUASKY Fluval Lights-AquaMaxx TS-2 Sulfur Denitrator

01/28/2007, 07:18 AM	#6
jag1979 Registered Member Join Date: Aug 2006 Location: Texas Posts: 982	I would say that there is definatly at least enough light. You should try to get your calcium up around 400, for both the corraliane and your sps/clams. what is your calcium, alk and mag levels? I had a tank set up under pc's a few years ago...coraline everwhere. Now I have mh/t5 and it doesnt grow as much. So I think that too much light = slower growth __________________ clowns, bi-color pseudo, coral beauty, yellow tang GBTA, crocea clam xenia, various polyps/zoa's, candy cane, tree leather, frogspawn, torch, various mushrooms, green/red plate, birdsnest Current Tank Info: 180 AGA, tunze 6100, 6025 and 6060, 3 x 250 mh's, 3 x 80 t5's, ASM G4+

01/28/2007, 06:14 AM	#4
Mr31415 Registered Member Join Date: Jun 2006 Location: Surrey, Canada Posts: 1,926	Are you sure? My acropora and clams are growling like weed. In the main display like I said on the sides of the LR where there is less light the coralline is also growling like weed - and it has almost covered the back glass pane.

01/28/2007, 09:42 AM	#7
Mr31415 Registered Member Join Date: Jun 2006 Location: Surrey, Canada Posts: 1,926	The alk/calc levels are about 7dKH and 400mg/L. But like I say - I have LOTS of coralline algae... Just not directly under the light.

01/28/2007, 09:49 AM	#8
Dubbin1 Registered Member Join Date: Mar 2004 Location: Findlay, Ohio Posts: 11,540	The light is not causing your problem. What it is for sure I don't know but it does not take a lot of light to grow coralline and I have never seen to much cause a problem. BTW I would up the Alk to at least 8dkh.

01/28/2007, 10:25 AM	#9
LOTUS50GOD Registered Member Join Date: Mar 2003 Location: Phoenix, AZ Posts: 3,210	I have 1200 watts (HQI)over my tank and coraline grows everywhere... I honestly do not like it... takes away from the beauty of the rock IMO... __________________ Vertex Alpha 300 Skimmer, AI SOL Blue, Neptune Apex Controlled 360 gallon Reef Current Tank Info: born 6/26/2008- 340 reef + 100 fuge, 300lbs of figi LR

01/28/2007, 04:16 PM	#10
Mr31415 Registered Member Join Date: Jun 2006 Location: Surrey, Canada Posts: 1,926	Maybe it is my small urchin?? Thanks for the opinions...