LazyFish Posted August 18, 2022 Share Posted August 18, 2022 Asterina starfish. Most concider reef safe but I've found when they get too numerous or not enough to eat may consume zoas. 1 Quote Link to comment
RockyMountainReef Posted August 18, 2022 Author Share Posted August 18, 2022 Shouldn’t be too bad then, yeah? First one I’ve noticed. Reading they can be signs of good health in my tank, just need to watch them like any other pest? Quote Link to comment
Tired Posted August 19, 2022 Share Posted August 19, 2022 Adult starfish. The starfish referred to in the hobby as "asterinas" include a number of species, most of which are harmless unless starved. A few of them do eat corals, but, unless you see damage to your corals, it's safe to assume that these are harmless. You'll notice that they often look asymmetrical. They multiply partially by splitting. I've got two in my invert quarantine tank now, both looking like triangles because they're from a single one splitting in half. 2 Quote Link to comment
dpachecop Posted September 27, 2022 Share Posted September 27, 2022 Asterina starfish Quote Link to comment
spazizz Posted September 28, 2022 Share Posted September 28, 2022 IME they only eat dying/unhealthy coral tissue. If they get to big in numbers it's easy enough to net them off them glass at night. I just removed 50-75 of them in two minutes. Quote Link to comment
SF Reef Posted October 4, 2022 Share Posted October 4, 2022 Definitely asterinas, I wouldn't worry about them. Agreed I have never had a problem with them and corals. If they do ever become an issue, harlequin shrimp can wipe out a tank full in a week or two, but would need supplemental feeding or rehoming after. Quote Link to comment
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