I bought an orange tree sponge that I've had for 6 months.
It was initially out in the open in good current, but algae
grew on it. I moved it twice, and it is probably 50% of
what it was. Interestingly, what is more hidden in the
rockwork is still doing very well. I'm leaving it there,
and enjoy seeing what it will do in that spot.

Marc


wrote:

I have a 4 year old reef tank, and over the years I have attempted on
numerous occassions to introduce specimens of sponges into my tank. I
know that they are not to be exposed to air at all. Virtually all the
attempts have had a similar course. They start to shrink away, usually
with a whitish film. Usually after about 6 months they have virtually
vanished. The only exception to this experience has been with the
sponges that came naturally growing on my Live Rock. I have multiple
specimens of naturally growing sponge which has actually been growing
in my tank. Anyone with success with sponges?


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