<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by SPC:
<strong>As I understand it (Dr Ron), these cukes are NOT poisonous, it is the filter feeding cukes that are.
Steve</strong><hr></blockquote>
From what I recall, this is partially true. I believe several cukes (fiilter feeding or not) possess toxins that deter predation. However, some cukes toxins are far more toxic then others, and some have the ability to release toxins, while others have them assilmiated in their tissues. As a defensive mechaism, most sand-sifting cukes will spill their "guts" when harassed. The predator will concentrate on the entrails while the cuke makes a slow getaway.
I don't know how toxic tiger tail cukes are, but in the animal kingdom, a common trend is the more colorful a lower-ordered (prey) animal is, the more toxic it is. Personally, with the fishes I own, I don't chance cukes in my tank.
[ December 08, 2001: Message edited by: Leonard v2.01b ]</p>