Hi wanting to start a cichlid tank and I'm so confused with conflicting info is it OK to keep a mix of Haplochromines, tang, mbuna, vice?? To be honest I'm even confused about the different types. Are they all from Lake Malawi? Also I read that it's better to heavily stock a cichlid tank to prevent a particular fish getting bullied non-stop. I have a 240l tank any suggestions on types of cichlids and how many of each? Female/males mixes vs single sex? I do really like the brightly coloured cichlids. Also any suggestions on substrate tank layout would be greatly appreciated