I am in the planning phase of a project I have been wanting to do for a while now - a river setup. I am thinking of a nice long tank, about 2.5 m, with uni-directional flow to simulate a nice fast flowing stream. I would like to set the tank up for the Hillstream Loach, providing them with the conditions they would find in the wild (fast flow, high oxygen levels). I have done quite a bit of research on possible tank mates but I'd like some advice. The White Cloud Mountain Minnow is an obvious choice (although they are from China). I've also read about weather loaches and think that two or three would go well in such a setup.
I've also come across; Clown loach, Red fin loach (Botia), Zebra Danio (although technically they come from India and Bangladesh), Bala shark, Red-tailed black shark, Flying Fox, Checkerboard Sand Loach and the Dwarf loach.
So, I was thinking hillstream loaches, a decent sized school of WCMM, maybe a school of bala shark or Danios and two or three weather loaches.
I'm not really worrying about fish load at this stage because I'm not sure exactly what volume the tank will be. But in terms of compatability and suiting the tank, what do you guys think? What suggestions do you have?