Hi guys new to this site as you will already have guessed , names kevin and I stay in aberdeen. Got a 6ft tank , holds about 600 litres and I have malawi chiclids , tanks been running for about 3 months. Kept malawis about 20 years ago before selling my set-up so back to being a novice again. Got about 30 fish in the tank . Hoping a few of you keep them as I have loads of questions .