I be concern for water quality and a nutritional diet in which do include a variety of crab for here you must I know or assume that your much LR for hiding places and depending on the aggression level of your trigger being that your a real timid eel that normal has no defense against a trigger for even larger morays such as the green or tess, you name it that you may think that a trigger is totally with no defense for itself. In which would be a serious mistake on ones part for the eel in taking a trigger fish as its prey is sometimes no easy task, specially when the trigger is a large growth size.
Eels for this reason if they cannot cause serious injury to the trigger with all its trashing about and trying to twist around in trying to force the eel in releasing its prey. The one thing is that the eel what if it be the Tess or green and even the giant moray, they all fear in causing themselves some serious damage in their necks in which is like what we as people have in certain points in our human body and that in which leaves the eel in caution in not to damage their Ligament that is in their neck for if this were to happen, they would not survive and starve to death. That is why when anyone hears a triggerfish escaped some eel and you want to know how could the fish manage its escape. I tell you that for it could also be that your young SFE is feeling intimidated for as well, the younger the eel, the greater chances for it to feel it is intimidated by other tank mates.
Like your eel is most likely cautious into moving out into an open area, is it?
Also you have these two in quite a large tank and im also wondering about if your any dead zones?
Now you say I been helping you with the problem you mentioned, now I do forget many I spoken to when much time gone by and as of right now I not remember anything as this. It not however mean that I wouldn't` assist you if I can.
Kodiak, I not would think you get anyone who would agree with your thoughts on a SFE in a 30 and many will agree with a 55 and im not one of those that the smallest tank I would suggest is nothing smaller then a 75 gal tank.
tankanator, you can tell me anything that you took notice of in any actions between the two or in most in how the sfe behaved when the trigger was near by. Also at night, anything could had happened for the sfe would be on the move to where as the trigger was looking to bed down and in passing the trigger hiding spot, the eel could had its warning then by the trigger performing some sort of an attack for it would if as small as your saying would bite and trash in slapping its tail in hope that whoever the intruder be would dash away. And once this trigger is a much larger size predator and then its attacks would become relentless/ruthlessness and in this you would find that even the Niger Trigger could surprise you of something as this.
But always my bottom line when keeping so young juvenile morays, not have them in with any aggressive tank mates, specially eels like the SFE. But its color lost is either from a lack in its nutritional diet, its feeling as if its intimidated by other tank mates and water quality in which all leads to stress.
So tell me anything you can like if your tank is just a new setup or anything other you might tell to better answer your problem for if your sfe is about 8", its thin as a pencil in which makes it totally defenseless when it comes to most triggers.
I another response in another thread to comment, but it will have to wait until morning, night
