African cichlids aren't impossible, all you need to do is add epsom salt and baking soda to your water to raise the Kh, gh, and pH. The best thing about baking soda for that purpose, no matter how much you use the pH won't go higher than 8.2. Using more will raise the Kh, which determines the stability of the pH. Epsom slat will raise the gh, but won't affect the pH.
Here's a link with a bit more detail: http://www.cichlid-forum.com/articles/buffer_recipe.php
Here's a link with a bit more detail: http://www.cichlid-forum.com/articles/buffer_recipe.php