So as the title suggests, I have run into an algae-splosion in my high-tech 40G tank.
I assume its a combiantion of hair and fuzz, but there are other types of algae afoot and I have no idea what they are (even some really weird branchy stems that I can't remove - although I don't think that's algae).
It sort-of started about 2 months ago after I changed the hardscape, no doubtably stirring up some mulm etc causing a spike. It continued to get worse few weeks ago with some hair and fuzz algae, localized to a small spot on my HC. Very minor GSA on my rocks and glass.
But then it started to get even worse, much worse.
At first I thought it was high nitrates (they seemed >40 when tested last week).
So I did a thorough clean (tank & filter) with a 60% w/c, and added some Seachem Matrix and Purigen into the filter, as well as some pristine in the tank.
The water change was done Sunday (today is Thursday) and since then, the algae has gone balistic. I have never seen it grow this fast. It has now spread all over my other leaves (originally was just HC, but in three days it has spread to everything!!)
CO2 - 30 at day
KH - 5
GH - 8
Amonia and nitrate are zero
Nitrade - 25-30 (now, around 40-80 last week)
Phosphate - 2 maybe (I can barely read the test-kit)
PH (7.2 night, 6.8 day)
Test kit for nitrate and phos (as of 2 mins ago)
I did stop dosing this week (starated back today) thinking that maybe overdosing was causing this, but it didn't help and only got worse (coincedence)
This is what I am dosing three times a week:
These are the lights (2 of)
Prime Freshwater » AquaIllumination®
CO2 turns on at (this is on a pH controller as well) 1045am
Light turns on at 12:30 (they slowly increase intensity)
Light reaches full intensity at 1:30
CO2 turns off at 720pm
Light starts to turn off at 7:30
Lights are completely off at 8:30
CO2 is around 30ppm when the lights turn off.
I have no idea what to do! People have said a 3 day backout (complete blackout) then do a big tank clean, but how does that fix the underlying issue?