Update: so, bought some ghost shrimp to put in a 2.5 gallon while I'm away. I'm in pet land and I go to the ghost shrimp tank. They had twelve for four bucks so I ask the guy to give me twelve. He takes the net and scoops the net in the tank to grab some. Puts them in the container and takes a look at them. He goes,"well, looks like twelve," and then pours them into the bag, rubber bands them, and then I pay for twelve. Turns out their was about 14 and they neglected to realize they put a feeder guppy in it. Put the guppy in the DT and it sat right in front of the eel's face. Shockingly, the eel didn't want it, he just went back into his cave. I then decided to just drop it in with the lionfish and the lionfish sucked him up without a second thought.