Reef Central Online Community - View Single Post - Sudden phosphate rise result in brown sps?

Timfish · 11/10/2017, 08:54 AM

I know Birdsnest is can be happy with much higher levels than that but I wonder how bright your lights are? If it was not getting enough phosphate to grow zooxanthellae AND it's under lower light, like 50 - 100 PAR, it may have browned because it's grown more zooxanthellae. What you were seeing before was colors induced by being partially bleached from lack of food.

11/10/2017, 08:54 AM	#2
Timfish Registered Member Join Date: Jul 2010 Location: Austin, TX Posts: 1,985	I know Birdsnest is can be happy with much higher levels than that but I wonder how bright your lights are? If it was not getting enough phosphate to grow zooxanthellae AND it's under lower light, like 50 - 100 PAR, it may have browned because it's grown more zooxanthellae. What you were seeing before was colors induced by being partially bleached from lack of food. __________________ "Our crystal clear aquaria come nowhere close to the nutrient loads that swirl around natural reefs" Charles Delbeek