We might not need to do anything, this morning we watch two of the babies swim over the spill and into the fish pond so there is the chance that all of the others will too
I guess we were subject of "fry prank"!
Yesterday we decided to catch the 3 babies that were swimming in the plant pool to put them with the rest of the fish.
After removing the Lilies, catching the 3 was very easy, but once in the fish pool, the 3 kept on trying to swim up the spill to get back to the plant pool and one actually succeeded.
Which means the 2 that we saw swimming to the fish pool, were only visiting
At this point trying to move them again is useless, they know how to get there and back on their own
You can see the travel path in this pic., the spill is at list a foot drop.