Well I am finally getting my aquarium together and have got a basic setup going. I have a 55 gallon corner tank with an XP3 for filtration and white crushed coral substrate. My tap water is pretty hard but I will be testing it further in the next week. I'm interested in getting some N. Brichari's for this setup but I was wondering if it were possibly to keep them with some Juli's? The guy at my LFS said if I have enough hiding spaces it should be ok if they are the same size. Is this true? I have also read online that I could possibly get away with one adult Altolamprologus calvus and then some Brichardi's. The only problem is I haven't seen any adult calvus in my area only 1" fry. I'm looking for any input on which route to go and how many fish I will be able to have in this tank.