How long in current setup? (Juvies)

[JenTN]

I am just wondering how long before I need to thin them out or (hopefully) upgrade tanks. I have 6x juvies around 3-3.5 in & 4x babies around 1.5-2 in. 10 total. 55 gallon. Also have 12 tetras, 4 rams & 2 bnp. I do daily wc around 90 % id say, right over their fins. Thanks!!

[discus day]

i would personally get rid of the tetras so i can keep the discus a bit longer =p but i would say once they get about 4" it shuld start to crowd up