If you want more than one, do you have to add them all at the same time?

[lockrookie]

think of the hair clogging the power heads and pumps. the cost of keep up and time invested would just be enough to break a person. not to mention im guessing simular to a sea urchin they would re-aquascape your system the way they want it whether you like it or not.

i think i would pass all in all some things should be left in thewild to fend for thier own.