think many of us can relate to what you are saying. You have a nice tank. well balanced, good plant selection, but I think you are right, need to focus on the CO2 and dosing. What light do you use ?My only aquarium is situated on the kitchen desk. It brings me a lot of enjoyment these days and I spend a lot of spare time by watching it and by taking care of it. My wife is not always happy about it
Thank you for your comment. It is nice to find out real people are here, not just robots .think many of us can relate to what you are saying. You have a nice tank. well balanced, good plant selection, but I think you are right, need to focus on the CO2 and dosing.
My light is not impressive :What light do you use ?
Actually I lowered the light at 50% until the day before tomorrow (I have dimmer) - I was waiting for duck weed and Ceratophyllum to cover the surface with aim to use their power against algae. I turned the light at highest level. I also plan to switch to EI but first I want to use my PMDD solution completely - I am not in a hurry and I want to see what will happen with the algae if I make all other measures.No need for glutaraldehyde with thread. Toothbrush for mechanical remove, CO2 and lower light to prevent resurgence.
You are right, plants need nitrate and phosphate to grow and survive. You may want to consider adding that if you see problems in older leaves.
12hours of light may be too much at this point.Most plants do good with as little as 6 hours.
In this case, you need to remove as much as possible by hand/toothbrush.
The ramifications present in the algae in the photos shows that this is not a simple thread algae, maybe something more close to cladophora. In this case, you need to remove as much as possible by hand/toothbrush. Short-time spot dosing of H2O2 may also be a choice if all else fails.