odessa barb

So I'm setting up a 30 gallon hill stream tank with about a 900 gallon per hour flow rate. Most of the flow will be aimed at the bottom of the tank. I'm planning to get all your regular bottom dwelling hill stream species, but I'm in need of some fish for the midwater. Im tempted by Odessa barbs...

Hi, i am thinking about having a brackish tank and i want bala/silver shark, are they able to be in 1.005 salinity? also wondering about odessa barbs and denison barb, yes i know they arent really monster fish but i am planning to keep all of those fish with archerfish and maybe argus fish