Bit of good news, bit of bad.
I left the tank unattended for the first 5 days of my holidays. Good news is, not much growth in the cyano department. Bad news is, my HC is basically dead. I am taking it all out tonight and putting it in some potting soil under the light before I leave. Hoping a little of it will bounce back so I can replant it when my CO2 is going.
On that note I still have no clue why my CO2 regulator is acting up. Will have to deal with it get back. None of my other plants are growing. Hopefully that will work itself out when my regulator gets fixed.