Yukon wrote:


I had a pincushion drag around a snail shell with
a mushroom on it for months. I also have had them
strip insulation right off the wire of a powerhead and
fry a tank. It was only a 10 gallon tank, but it could've
happened in any tank. I still have urchins in all my tanks, but
I keep an eye on 'em.


I have two pincushions in the tank....don't know if it is a size or
species issue.....the pink one (that is double the size of the other
one) is the culprit.....I've now adopted the policy of rescuing the FD
when he gets taken for a ride.....the other one is purple and smaller
(but this could be an age thing) - but the purple one never, ever gets
the crud stuck to it in the same way as the pink one does.....

I must admit that I do like them....and they do an awesome job on algae
control.....although I understand that there can be issues once the
algae has all gone.......

I like the idea of just keeping an eye on them.....not sure the FD
appreciates those hours when I'm out of the house and he gets taken for
his trips....

Gill