With fry in a tank I cut apart a filter sponge and make a cover to pull over the intake tube. This cuts the flow rate down and won't suck up the little guys and they seem to like picking at the sponge - there must be food bits there.
The A. austarles are egg scatterers as opposed to peat spawners so they spawned on everything. On the java fern, under the log, behind a rock, on top of some floating plants near the water surface... they were busy fishies! LOL
I just waited until i saw tiny golden eyeballs peeking out of the plants and used a turkey baster to suck them up and move them to a fry tank. I got tired of fry hunting after a while though and just started to put adult and fry food in there and the strong/clever would survive and get sold off when they started coloring up.
I have not tried shrimps yet in my new tank. In the old days they would only last a few days but since I'm doing so well with the purple apple snails maybe i will do OK with the shrimps this time. I might pick up some ghost shrimps just to see how it goes before I ever try the cherry reds that cost a lot more.