Cheers for the advice
Purigen is still proving to be elusive so it's going to be carbon until I can get my hands on some
In the meantime - updates! First off, a trip to the LFS to empty the wallet. They were slightly confused by my turning up not in work clothes, but recovered well!
A nice upgrade from the Fluval 88 to a 1 litre refillable and regulator with solenoid. That will stop me worrying about the
plants fish when I am away at uni
And a quick duck into Bunnings to pick up a couple of power timers to automate the CO2 and lights separately
All assembled and tucked into the cupboard below the tanks. Note my professionally inserted hole in the back. 'Straya!
Bubble counter doing its thing
With three tanks, the CO2 gets split between them and I need something to control the feed to each tank but most air filter lever type jobs leak under CO2 pressure, so I opted for a couple of air splitters for the time being.
The business end, looking like the business
Fabio approves, and celebrates by building an enormous bubble nest, which he and his girlfriend Margie are busy filling with eggs as we speak