What Rhea says is true, and lately I've been cutting Deejay back a bit on the salmon because her little chin was starting to grow!!
I was letting her eat as much salmon as she wanted, and sometimes she'd take almost half a dozen strips.......now I only give her 3 at a time, and if she's prowling about too much in the middle of the week, I'll throw in a couple worms for her, to keep her going. Seems to have stopped the double chin in its tracks.
Kane,once you get your garter to a good weight, then you can put it on a regular schedule, and experiment more with other foods. It won't hurt to feed it often while trying to fatten it up!