frozen krill

Hey, so I've had a rope fish for about 3 weeks now. He's in a 39 gallon tank with the following: 4 Angel fish 2 Blue Rainbows 2 Electric Blue Rams 2 African Butterflies 2 Green Cory Cats 2 Assassin Snails 1 Bristlenose Pleco and 10 Diamond Tetras And then the ropefish itself. Now everyones...