Well aware of this. My plan was when they get about 4", they would go in the 40g with the scombs and once they reach about 6-7", they'll go in the 150g with a 14" endli bichir and 7" lap bichir. I originally had the scombs in there, but within the first 30 min of them being in there, the endli tried to eat one so they need to get some size before they go in with the big boys.
Anyways, no one has answered my question yet. In the wild, do the babies just hang out in shallow, well planted areas with less current and migrate to more turbulent areas as they get bigger?