keep an eye on them.. Altums can be a bit tricky. I noticed one with clamped fins(tail fin)
an early stress sign...most likely due to being new.
if they are wc altum they come from very acidic water and have issues with immune system and bacteria. wild altum often come from a very low pH where bacteria is suppressed.
do you know if they inirida or atabapos?
they look larger than dime size. generally early season angels tend to Inirada..same strain as the ones I have(from 2011)
good news that they are little piggies at feeding time.