Help Please Advice Needed

[lasswade]

Hi Guys
I am new to the forum and new to keeping Malawi's
I have had my tank running ok for about 6 weeks with no problems
I have 3 Saulosi and 3 other ones which I cannot remember the name of
Anyway they all live happily together
On Sunday I purchased a Leopard Cat and a Blue Zaire Frontosa
My Lfs had these in a Mbuna tank
Everything was great until last night when all the fish became very listless and off their food
I have checked and rechecked the water quality and it seems ok
I did a partial water change but no difference in behaviour
Any help would be great
Thanks

 

[dthoffsett]

What sized tank, has your tank been cycled for 6 weeks or just finished cycling? What are your actual ammonia/nitrite readings?
Unfortunatly frontosas, aren't a great addition to tanks with mbuna, fronts tend to be sulky when moved to a different tank, and will also most likely be picked on by the mbuna. (Just because it was in a mbuna tank at the LFS doesn't mean it will work long-term). Also, fronts need a minimum of 125gals.