it's been 10 days now , and it seems to me like the sponge is getting thicker in some areas (the long piece under the light). Let's hope it buds some branches. I have buddy'Ss laughing at my stick sponge ;Happy.
Phycodurus , I did wondered about those canal looking holes, I know not much about sponges too but I checked my pictures of when I bought it , and it was already that way ... probably through manipulation before I bought it.
I did read that if I didn't manipulate it properly , I would see air damage within a couple day's so I guess i'm fine on that part.
I feed randomly a nice amount of different sized food and some of those are 'suggested' to be fed at sponges.
I just started a phyto production, my goal would be to feed the aquarium on phyto every hour with a dosing pump... well see well see :)