Can anyone advise on what I should be using fertiliser wise to combat this hair algae? It’s growing on the slower growing plants and I can’t get rid of it, I remove as much as I can and cut off badly affected leaves every week when I water change. Also my tiger lotus are more brown than red although growing very well. The tank has co2, 7 hrs of light and I use 12ml of TNC complete once a wk, tank is about 120 litres. I do have a bristlenose pleco in there but he’s more interested in lolling around than eating algae, although he does keep the back wall mostly clear.