Fish Recommendation: Prefer High Flow And Ph Please?

[didz04]

Hi 
 
I have decided to keep a group of african tinanti congo cichlids type of fish which in nature require medium flow pushing over the rocks. 
 
Do you know of any other types of fish that live in high PH and are good for high flow environments which will cover the middle and top of the tank area as the congo's are bottom dwellers. 
 
Thanks. 

 

[didz04]

http/www.liveaquaria.com/product/prod_display.cfm?c=830+886+1053&pcatid=1053
 
I was looking at this rainbow fish which was recommended in other threads, regarding tanks with stream effects. So far this is all I have got but I'm also looking into the hill stream loach.