st datnoid

Hi, I am new here. I am currently growing out 4 geophagus tapajós and two Satanoperca Jurupari for a 6ft (550L) aquarium and recently acquired a 2-3” ST. Could these species live together in the 6ft until the datnoid outgrew it ? I currently have them housed all separately in smaller grow outs...

Im new to datnoids and a little unsure of whether this is a true st or just an indo? Either way the guy that works there hooked me up and sold it to me for $30 which is far off from its $100 price tag. It’s a little unstable right now as I just got it back home, but there’s 3 bars on one side...