Have you looked in to what parts of S.A that the fish come from?
becuse as lots fo fish come from S.A the water cons are very diferent
dependent on where they are from and if you are looking for a tank
that is as true to the area that you have in mined you sould look
more in to where in S.A the fish come from and
as you are looking at altums you sould no that they spook very easy
and you sould whatch what you put with them

i am not very good at puting things down in e-mail like this and i
have a lot of experance in the aquatics trade so if you would like to
talk to me about your tank or any fish relayed sub e-mail me direct
at pandafishuk@...