I am setting up a new, densely planted 180l tank and realise that I would benefit from CO2. I am not keen on the DIY approach as I would prefer to turn it off at night for the fish, but do not want to spend a huge amount on the system. What is the best approach to take? Are any ready made systems worth considering? Or am I far better off constructing my own? In that case what sort of budget will I need (based in UK)
Thanks.
Thanks.