Closed trachiphillia

[Artik]

I've had two trachy's in my tank for around a year and in the last month they have both simultaneously stopped fleshing up. All water parameters the same, still doing regular water changes. All other corals also alright. Any ideas?

 

[MCsaxmaster]

What changes have occurred in the aquarium in the last couple months? Any new corals? Rearranged corals? New fish? New additives, etc? What are the water chemistry parameters?

cj