Photosynthetic portion of Frogspawn?

[axciom333]

Hello,

Does anyone know what part(s) of the Frogspawn tentacle is the photsynthetic part with the zooanthellae in it? Is it the little nodes, the entire tentacle, or both?

I have mine down low in the tank under T5 lights. It was not opening well in its previous home but has been adding lots of new little nodes and looking much better in my tank. I didn't know if that was a sign of general health or maybe it wasn't getting as much light as it wanted and was trying to compensate by adding more zooanthellae?

Just trying to understand these animals a bit better as they grow in my system.

Thanks,

James

 

[dc_909]

I believe the entire head has zooxanthelle in it. The "nodes" I believe are the stinging part.