OK, love being quoted on previous replies.
Your replies are rather condescending, there are those out there that are prepared to learn good fishkeeping, and there are those who like yourselves seem hellbent on talking down to people, we are here to learn, not be treated like children, we sometimes make mistakes.
Let's look at some of today's community fish, some have been bred here in the UK, never having caught site of what's natural to them, they are bred in all sorts of water chemistry, soft/hard, you name it, that's a fact of profit verses loss and ignorance.
Why would you assume I know nothing about fishkeeping.
Why would you assume my filtration is not able to cope with my setup, you don't know that.
Why are you giving me a lesson in keeping lake Malawi cichlid's, I already know this.
Why are you asking me about my water parameters, I've already told you they are perfect, why ask about my nitrates, these are not the questions I asked, they are merely observations of my own tank, and the maintenance I carry out.
With the clown loaches now at their new home, why do you assume my tank is still overstocked, and if you go by your second and latest formula, 2 inches per gallon, then I am way under stocking limit, unless of course your fish sizes are different to what I'm getting on the pages I visit.
I'm disappointed that I asked a decent question on here relating to stocking more fish in my tank, and your replies fall well short of being helpful.