I've been rocking this Haliclona Blue guy for about a year now. I got it from another aquarist who had it for 2 years I think. it really hardy, grows super slow and does not like bright light. If you see algae growing on it, move it to a shady area. provide it good water flow and I don't feed it anything. I moved it around to a few tanks and it left little sponges on the rocks and those are slowly growing too. I would emphasize the slow growing, but they look so nice.
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Nice sponges! Have you had any algae problems from the sponge power?
I've been using "Sponge Power" for the past few months, and I can say it does seem to boost the sponge growth in my system. It definately sparked new growth in the sponges within my live rock. I noticed faster growth with the sponges within my live rock shortly after dosing the product.
With the larger ornamental sponges I've aquired it's been hit or miss, but I'm sure the additions don't hurt any. I also dose Fauna Marin Ultra Min F for sponges as well.
I love sponges, and I think they add diversity and color to a reef aquarium.
Airwolf75 that blue sponge is AMAZING!!!...great pic! I know what you are saying about frags from that particular sponge.....they are definately slow growing IME.
Here's some of my sponges that popped up on my live rock...as well as those I added to my system:
Nice sponges, and I like the tunicate in the first picture on your second post too!