Sponges

[Samw]

I've tried 3 different kinds of sponges with mixed results.

The orange flower sponge that I bought on Oct 5 last year is still with me and is doing fine. It has not grown significantly but is healthy.

The pink vase sponge that I bought on Oct 5 started dying immediately but at the same time it was attaching itself to the liverock. I would say that I lost 70% of it but recently, it has stopped dying and is now recovering. I've removed it from the large live rock at the back of the tank and am trying to place it in a better lit location as an experiment. Although it is now recovering, it is uncertain that placing it in light helped or not. The little pieces of pink sponge that were left behind on the rock that it was previously attached to are also still alive for a couple of months now. I think this sponge has a good chance of survival.

I also tried a blue sponge on Nov 4 but that died in about 2 weeks turning completely white. Some say that the blue ones are photosynthetic and need very intense lighting.

I don't really do anything special in terms of feeding. Once a week, I add some DT's.