I have been trying to get brine shrimp or bloodworms to the bottom of the tank for the Clown Loaches. Finally got a "tea steeper" (one of the balls that you put tea leaves in). I put a frozen bloodworm chunk in, it slowly defrosted and the worms came out the holes. Works for Brine Shrimp too. Oscars loved it, plus had fun playing with the ball and there was still leftovers for the Clown Loaches. Anyone else try that? Who knew that would work?

I tied a worm to a fishing bobber. I think it was funner for me watching them take turns trying to take it down. But they both got some earth worm

I defrost my bloodworm, It sinks and scatters all over for them to find.