Originally Posted by
AquaKnight
http:///forum/post/3221016
I've lost a $120 Sargassum Trigger, and a 1-in-a-1000 baby 2" Harlequin Tusk to jumping, so I know the effects painfully well
(in attention to know jumpers LMB, pearly jawfish, orange-spot gobies, sixline). I call tell you exactly why each of them jumped though. The Sargassum was from aggression from a Naso tang, the Harlequin Tusk was from an aggressive lyretail anthias and possibly a leopard wrasse. Some of the others have been when the sump's run dry and the pump shoots air.
That said, my 90gal reef is open top-ish. A big halide/VHO fixture sitting on top of it with about a 4" gap on the front/back. Though my 240gal will have a completely covered canopy. And all of my holding tanks have tops.
Sorry you lost that little tusk. I'd love one that small. Tusks are wrasse and wrasse are jumpers. A couple years ago I had a tusk jump and heard it splat two rooms away, lucky. I use eggcrate now.