sponge ID please

[er1c_the_reefer]

here's an updated shot.

i can't really tell if the sponge is responding or not to feedings, but the symbiotic polyps on it respond well to food. feedings include fauna marin ultra-min F as stated, but it also responds to coral frenzy and rotifers.

 

[dendro982]

Very nice, and the big one!

Maybe what it need is Fauna Marin food. I didn't use it, but used live SS rotifer strain, L-strain preserved rotifers and frozen algae pastes, as described in this article.

What filtration and flow rate in the tank do you have?
In mine, water quality could be better, even if nitrates are fairly low.

 

[Tennyson]

holy crap, I env your sponge so much. Excellent job, it looks amazing.