Thanks, sayurasem & Jaguar for the help! I did some more maintenance, cutting back the dhg to help increase flow, reduced my photoperiod and installed an inline heater to maintain a temp of 72. Just when I was ready to begin dosing the extra fert, the bga started to melt... yay!
Tank's looking OK, a bit of the HC is dying off... still lots of bright green growth though, I think it'll bounce back. There are still a few small spots around the tank with cyano - cm x cm patches... but they are not spreading... or they are spreading VERY slowly. I will do a bit more manual removal tonight
The good news is, I am getting a CO2 cylinder tomorrow! My dad sent me a bit of money for Christmas and I decided it would be my present to myself this year. It is an aluminum tank, just hydrostat yesterday, he said some kind of valve had to be replaced on it?? So it is more or less a brand new tank. It should be here tomorrow morning, full too! Whee!
if the bga persists, you can do a small round of erthyromycin (maracyn) and it should clear up.
bga is actually cyanobacteria, a bacterium, and antibiotics can kill it.
as long as you treated the underlying cause.
otherwise it just comes right back in a few weeks.
Yeah, I know, if you read back on my thread I really haven't established an underlying cause yet, I lowered the power of my lights quite a bit, my flow's good, I dose ferts including nitrates, and so on... I tried hydrogen peroxide and it seems to have worked really well so far, fingers crossed that when my CO2 gets hooked up today it'll be enough to keep it gone for good!
Also yeah my CO2 cylinder came today! Early Christmas present to myself!
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.