Let's start of with the picture Tank is in progress, you can Follow along on the tropical aquariums south africa: https://www.tropicalaquarium.co.za/threads/from-100l-to-50l.28863/#post-362833 To explain: I will extend the intake of the hob with clear tube to allow circulation. I want one big rock feature at the back covered with emersed mosses. My first question is what is available in cape town with regards to mosses? How do i create a rock the height of the tank aswell as the width or where can i find a rock big enough? What would the constraints is with regards to lighting, scape or not doable? I will run one or two 10watt flood lights Sent from my LG-H990 using Tapatalk