Thank you everyone for your input and welcome.
My tank has a high ph for the cichlids, I didn't think that would be suitable for the clown loaches. I have kept clown loaches before they are awesom quirky fish which I would definately keep again. If clown loaches would be suitable, would it be possible to keep coolie (kuhlie) loaches? I would really like to have some of these guys.
I saw these guys on a doco about the African Rift Lakes quite some time ago, so cool. If there are shells in the tank would they behave similar to in the wild?
I have also had Brissle noses before and would certainly consider keeping them again. Will have to think on this one.
I also saw these catfish on the doco, sneaky lill bugger, I would like to look at breeding once the 6ft is ready so think I will stay away from these guys.
OK, thank you all so much for your help, I think I have narrowed it down to a short list to get more info on:
Bristle Noses - These are looking like a solid "can't go wrong" fish I may end up getting one way or another.
Shellies - If I can get my fingers on these, I'm thinking I may introduce them after I've set up the 6ft.
Coolie (Kuhlie) Loaches - Can anyone tell me if these would be a possibility? Would love to have these cute lill guys.
Clown Loaches - I would love it if I could get some clarification on whether they will be ok with the high ph and what I would need to do to adjust them to it correctly?