Adding severums?

[Buphy]

So my wife fell in loved with this "black spotted severum" (looks notatus to me?) at the lfs and want to play with our stock now... Currently have the following in the 125:
-13 lemon tetras
-6 Denison barbs
-1 bristle nose pleco
-12 geophagus sp. redhead tapajo (juvie all ~3.5")
-1 super red severum (6")
-1 heros efasciatus (4.5")

Obviously I'm going to trim down the geos as they grow, and I'm thinking about losing the lemons all together. Long term, assuming a group of 6 geos or so, how many severums do y'all think is a comfortable number?

Also, here's a pic of the "black spotted severum".

 

[SePPii]

I had a 120 with 9 full grown at one time and they all seemed to have plenty of room and honestly never had any aggression issues. You would probably be fine with the lemon tetras, too. I had Lemons and Tiger barbs with mine when I had them all in the 220

 

[ryansmith83]

The fish is a notatus. It should be fine with your stock though you'll need to thin out the geos as you said. Also, the other severums may give it a run around until they establish a pecking order.