Horseshoe crabs are the Best sand sifters around !
In unrelated news, my 13year old urchin died
I don't know for sure if the cause is common, but the last time I added a second urchin the new one died.
I added a blue tuxedo urchin a bout two weeks ago, and I haven't seen them get near each other, but I have to suspect some sort of chemical warfare was going on.?
I should have just stuck with the one like always, but I was looking for some GHA destruction help.
I don't suspect water quality, as this guy has survived my learning curve and transittion between many different ranges of neglect and top notch care. On top of that, in the last 10 years, I've upgraded twice, moved once, and generally, he's never missed a beat. And I've never had a spot of corraline anywhere within reach of his mouth.
In the past week, I've noticed a lack of shells being carried , not climbing the glass, and not eating when on the glass.A couple days ago I noticed he was lathargic, and not moving but still had and was moving spines and tentacles so I did my reg. WC , moved the tuxedo to the fuge, and hoped for the best.
I didn't suspect the conditions of the display, as nothing tests out of the ordinary, and I didn't move to QT, because there is no food, and neither urchin will eat nori or packaged foods.
This afternoon I came home to an empty carcass, and lost a long time pet.