I have read that this algae comes from excess iron which I am assuming came from the fert tabs I put in when i planted some stems 2 weeks ago.
I dose about 1 tbs of micro/macro mix from aquariumfertilizer.com everyday (miss a day here and there), 2 t5ho bulbs, 30-50% water changes every week, lights were on for about 8 hours but I lowered it to 7 today and I will start to dose 1/2 tbsp. My co2 is coming in through an inline diffuser so I don't know the bps.
In my experience, this algae (along with others) is triggered by ammonia in the water, and CO2 deficiency
How old is the tank?
Can you test for ammonia?
Get a drop checker at the very least to get an idea of your CO2 level.
I'd remove what I can manually with a toothbrush, and add amano shrimp if possible. Most importantly, need to have enough CO2.
The tank is 3?? months old. After the fishless cycle, I tested for ammonia and nitrates for about a month after I added fish.. Everything was normal so i stopped testing. I changed water today, so I will wait a couple days to test it.
Yes, pressurized co2. I have a bubble counter, but need to get new fittings in order for it to fit.
Every morning I turn to co2 up to the point that it is a fog flowing out of the spray bar. One day I came home and saw all my fish at the surface so I have a good idea of what is too much for my fish.
Tested ammonia this morning.
came up between 0 mad .25
That color on an ammonia test tells us you're using a Nessler's reagent based ammonia test. You're seeing both free and bound ammonia (ammonium).
A reading of .25 - .5 is not necessarily a useful or accurate reading.
You might want to use the search feature to look at black outs, or deliberate over dosing with glutaraldehyde or Excel to kill the algae.
Spot treating with Hydrogen Peroxide H2O2 can be very helpful.
I have it too on a piece of driftwood that has moss attached. It's about to take a H2O2 dip this evening to see what happens. It isn't anywhere else in the tank. I do have diatoms and I'm not getting green algae on the glass so I need to figure that one out. Might get some ottos to take care of that issue.