Help, Malawi's sluggish

It could be chemicals in the water (copper in particular), or the stirring
up of all the gunk in the tank and the change in ph which can quickly
escalate the amount of ammonia in the tank. Either way, a Polyfilter could
help dramaticly. You can buy them from most aquarium shops (even- I hate to
say it-Pets At Home) and they cost about £12.00. They are then cut to size
to fit your filter. They are then inserted into your main filter and will
even change colour to indicate what has been removed. It saved the whole
tankful once after a 40% water change knocked them for six. If you have an
ammonia water test kit, then I strongly suggest you start with that to
establish if that is a major factor or not.
Let me know how you get on, keeping Malawi's can be very rewarding but is
not always easy and often extremely stressful IMHO, but worth it :-)
Rosie

"Mark" wrote in message
news:Twpce.15353$Nc.2179@trnddc09...
I did a 1/4 water change last night. This morning all my fish 10 in a 29
gallon auquarium are very sluggish. 4 or 5 keep hanging around at the top
with their mouths very near the surface. They don't seem interested in
eating. What should I do. This tank has been setup and running about 6
months with no issues so far.