Dang, that's unfortunate, the tilapia situation. They do seem to tire of it if you use it for too long though. I have two big female concinnus' right now that were eating fairly well on tilapia and the occasional rat pinky but for the past 3, almost 4 weeks, they have refused to eat and even look like they thinned out a bit. Keep in mind they weren't all that thick to begin with since they haven't fully filled out since giving birth. I was getting very worried. Not because of the time without food but because they really need to put on some mass before I would consider them fully "fit".

Well, today I found previously frozen WC Alaskan Copper River Sockeye salmon. Very clean, very good stuff. And the price, outstanding at $8.99 a lb. (normally no less than $12.99 lb) So, I got some. Still refusing tilapia, I offered them the salmon and they gorged themselves and dang took my fingers too.

Just saying, even if you did find the tilapia, you still can't rely on that as the only fish you give them. For some reason, they always tire of it and want something more "fishy" smelling.