Originally Posted by
joe____17
http:///forum/post/2913646
Why do most sw jump anyway? Would they do that naturally in the ocean?
Certain fish like wrasses, gobies, jawfish, are more skittish than many, and it doesn't take much to make them launch. A sudden scare, trying to get away from an aggressor, etc..
Many eels get out simply due to their curiosity.
In a closed system there isn't anywhere else to go but up. Larger fish are less apt to take the leap of faith, but any fish can jump. I've heard of lionfish carpet surfing before.
Having some type of barrier/top is really a good idea.