For the Hell of it, here is my systems.

[marie]

Originally Posted by justinl

whooo weee nice tank! I have to agree with what was said above, the placement of it all is very well done.

marie: Ive heard of this before and it's not anything really uncommon (nothing to worry about at any rate). I think it's more than anything the fish having a bit of fun. I think there was even a video of this behaviour on youtube... or some forum maybe?

That would of been my video . I'm not really worried, he is obviously not "in trouble" it's just a definite conversation piece with everyone who comes to visit and I am curious as to whether it's just my fish or all achilles tangs that do this