Quote:
Originally Posted by dkcrx
Thats the answer! Most of the "reef safe stars" Blue, red, orange, are sponge eaters, I have had a blue for about a year now and it makes it's way around from rock to rock eating the multipule colored encrusting sponges that grow in my live rock "Purple, yellow, pink,black and white sponge" but I have noticed that over the last couple of months the sponge colonies haven't been able to grow back fast eanough to sustain the growth of the blue star. My tank is 300gal and after seeing this I would'nt recomend anyone keep these creatures unless you can aford to buy live sponge to feed it.
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I agree that they may eat sponges when there is not their natural food. There is a good picture of one eating a much smaller star on Eric Broneman's forum (or perhaps it was Dr. Ron's...) and the comment it elicited from whichever expert it was is that while it may eat that in captivity when starving it is not the stars preferred diet. To this date nobody has done the research necessary to state what they eat though it is thought to likely be some bacteria and slime in their natural environment. When starving a person may eat grass (or Mc Donalds) but that does not make it a diet that will support our life for very long (especially the Mc. D's...)