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Pincushion Urchin...


ong2ah
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Is there a diff between Pincushion Urchin & Cushion urchin... Juz got a purple pincushion urchin from aquamarin.... Done a readout at www.liveaquaria stating that its reefsafe.... anyone can confirm?? Btw a extract from the website state that "It may also prey on some of the sessile invertebrates in the reef system" What does sessile invertebrates refer to ?? Tubeworms fall in that category??

A previous thread a couple of days by bro borinz has reefers state that cushion urchin eat LPS... so i am worried as i got tubeworms, Frogspawn and Bubbles and also starpolyps... :(

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Hrmz, accordingly to some online dictionary sites, sessile = Permanently attached or fixed; not free-moving: a sessile barnacle. I don't know what will be considered sessile in reef tanks, tubeworms might fall into that category. Frogspawns and bubbles to the coral family and not inverts? :unsure:

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Hrmz, accordingly to some online dictionary sites, sessile = Permanently attached or fixed; not free-moving: a sessile barnacle. I don't know what will be considered sessile in reef tanks, tubeworms might fall into that category. Frogspawns and bubbles to the coral family and not inverts? :unsure:

Thanks for reply... i guess it is not that reefsafe... another impusive buy of mine... :(

My yuma mushroom die the next morn after i put the urchin in... dnt know coincidence or not..., and my brown pearl bubbles recede to very small and give up brown colour substance...like brown hair algae... being doing very well for mths b4 the urchin is in... anyway i dump the purple urchin in my sump tank liao... dnt know wat to do with it.... :huh:

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Are u referring to this thread by borinz?

Cushion Star

sad to hear abt the damage done.

Not too sure if the urchin i referring is the same as what bro borinz is referring... i check out in liveaquaria...it did indicate that its reef safe... perhaps my 2 feet tank is too small for it... thats why walk around and "hurt" my corals accidentally... <_<

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