Missing polyps on green birds nest

[Aidanwolf]

I noticed there are some holes in my green birds nest where polyps should be,what should I do?

 

[CodyRVA]

Looks like the polyps are just receding. What are your parameters like? Have you made a change to flow or lighting lately? How long have you had that frag?

 

[Aidanwolf]

My parameters are good the ph is a little low but that is about it. I haven't made any changes to flow or lighting. I have had the frag for made a month or so. And only one side is like this.

 

[CodyRVA]

My parameters are good the ph is a little low but that is about it. I haven't made any changes to flow or lighting. I have had the frag for made a month or so. And only one side is like this.

How much flow does the open side get compared to the other side?

 

[Aidanwolf]

Probably about the same.

 

[ReeferMaddness843]

Led lighting? (Reason I ask is that from the pic, it appears the shaded side is where polyps are not showing)

 

[Aidanwolf]

Yes it is a 180 watt blackbox.

 

[ReeferMaddness843]

My Garf bansai had stn in the shadow portion under a branch from no light hitting it when I had my kessil 160s. Have an SB 32" now (still an led) but much stronger and necrosis has stopped. Unsure of a helpful solution, but tagging along.

 

[Aidanwolf]

Okay thanks their hasn't been any response.