duncan lost its green color

[BeachVacationer]

Over the course of about a year, my duncans have completely lost it's green coloration. It's just tan now. Seems like it's doing OK otherwise. Is it due to too much light? Will the green ever come back?

 

[Sugar Magnolia]

What kind of lighting are you using?

 

[Mini_reefer]

I've sorta had some issue but only where it gets shaded out from its own polyps! I've had grown of one to two heads from 2 single head frags but nothing for skeletal growth


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[GimpyFin]

I'd be curious about lighting as well. Assuming your nutrient levels are in check, not enough light could cause it to slowly brown.

 

[BeachVacationer]

So this is just a 5 gallon tank over 2 years old. I have 2 Marineland LED bars for white light. Each is 7.5 watts. And I have 2 Wavepoint Point LEDs for blue lighting. Each of those is 8 watts. So that's a total of 31 watts LED light over a Fluval Spec V.

 

[Sugar Magnolia]

Typically lighting that is sold to light freshwater tanks is insufficient to support coral growth and color. It sounds like that's what you're using to light your coral tank. If not, it may be a water quality issue.

 

[BeachVacationer]

But I thought duncans like low to moderate lighting?

 

[BeachVacationer]

My acan and sinularia seems to be growing fine. They like more light than the duncans.

 

[GimpyFin]

What are your levels for nitrate and phosphate?