For anyone reading this thread, this is VERY BAD ADVICE. Yes sometimes you can move them over and they are fine but sometimes they aren't. Juvenile cichla shock very easily. If they go into shock from a move they will almost always die. It's not worth the risk.
The best way I've learned to do it is put them in a bucket or box of their own tank water, about 25% full.
Then fill it up almost full with water from the new tank using a length of air line.
Use a clothes peg to slow the flow so it takes up to an hour.
Then you can safely net them and put them in the new tank.