After a week the results were good. The DC is now a light green.
There was quite a lot of BBA on the Needles and Crypts in the centre of the tank from the 2 weeks of struggle with the CO2. Hopefully now sorted and no more tampering it would disappear. All deteriorating were removed. The rear and side glass was struggling from GDA too.
19th November 2008
I decided the Pogostemon Helferi was silly behind the hardscape being barely visible from the front. Also the growth of the Needle ferns was making the front of the tank very dim so I moved some things about and at the same tank had a darned good clean.
First though I did change the CO2 diffusion again and it has been like this now for 6 days. Not a huge change, just that instead of it being in the open on the right and straight down I put the diffuser pointing in the same direct as the powerhead output.
This meant I could fit it into the space behind the Philippine Java which should grow to hide it completely: