Making The CO2 Regulator

Excellent update on this, Andy, many thanks and I'm sure Simon will think so too.

The next update to my tank will be a completely new led light system to replace the "hybrid" flourescent tubes and led strip I currently have in there at the moment. The led strip has randomly decided to stop producing red and o can't even use the remote to turn the light off. I have emailed the eBay seller but I don't have much hope of a refund or replacement. Even though it's only been two months since I bought it. 

Simon if you read this, I'll be picking your brain about the led light scheduling module you bought and the led strips etc...