7 new wolf fish

Those who read about my accident know that I shouldn't be getting more fish. My 2'+ black aro is living in a 70g with discus, a 3' SAL in a 40g with marbled eels and a dinnere plate sized ray is still in 4" of water in the broken 130g.
But I was to what they refer to as "mercado de pajaros" and just couldn't resist it. I bought 7 Hoplias malabaricus between 2" and 5" in size. They are with a bunch of convicts, JDs, mojarras etc in a 40g. They mostly hang around on the gravel in tight groups facing one way. Cute friendly fish!

??

They are already eating the mojarras like grapes. Slosly swim up to the school and then just suck'm in. It makes this noise like if someone sucked in a noodle.

Actually the aro gets along with the discus. But the tank is too small and she keeps bumping into the glass. In a week or two I will fill the reglued 130g.