Water hardness

[guppy]

Your water is not that bad now so adding a few handfulls of lightly baked clean clamsor oyster shells should do it.
http://www.****************/catalog_pages/cichlids_african/cichlids_african_mbunas.htm
http://bellsouthpwp.net/t/f/tfdfish/PriceList.pdf

 

[ewurm]

Your water is not that bad now so adding a few handfulls of lightly baked clean clamsor oyster shells should do it.
http://www.****************/catalog_pages/cichlids_african/cichlids_african_mbunas.htm
http://bellsouthpwp.net/t/f/tfdfish/PriceList.pdf

Yep, shells could help your situation.

 

[red oscar]

try liveaquaria.com for mbuna