hiya there could any one give me some advice on setting up a tank for cichlids im about to set up a tank for clichlids and going to start breading them i know to breed them i need to have a dark background with dark graval stones and slate for them to set there sperm on iv got a 2ft tank for my breading pair and a 4ft just to have my clichlids in but wats the best ones to breed and what type of things would i need in my 4ft to keep ph up iv got coral sand and coral rocks what else can i add in there and whats the best filters to use