White sponge

[Devonious]

Do white sponges need light to grow? there in my sump.

thanks

[Delphinus]

No, they'll do just fine in the dark.

[Devonious]

Great Thanks Tony

[Zoaelite]

Sponges tend to grow out of the light as they are harmless filter feeders (Can be very beneficial to if used correctly, do some reading on a cryptic refugium for nutrient export if your interested)
Levi