I have jungle vals in my 75 gal tank - I like the look as it trails across the top. However, I was out of town and my nitrates got low - came back and now I see a bloom of algae growing on the tips of the vals. I heard Excel and peroxide are not good for vals so I have resisted spot treating the trailing val leaves.
I like the trailing look at the surface of the tank but should have realized that means the PAR at the surface is very high. I am trying to keep my all my macros in check with test kits two times a week. I should have figured that if there was going to be algae anywhere, it would start there. I was at 7 hrs of light per day and took it down to 6 last night after seeing the algae.
What is everybody doing to keep algae off jungle vals given the sensitivity to Excel/peroxide and the leaves at the surface of the tank where PAR is most intense?
My tank is 75 gal, pressurized CO2 with a pH controller, running for 4 months, EI dosing, GH booster, ecocomplete substrate, Finnex Monster and Finnex Ray 2 (the val is mostly under the monster light but the algae is worst on the leaves under the Ray 2), I do have some screen under the Ray 2 because I fought algae once before and had to cut down the intensity of the Ray 2, 6 hrs per day lights on, medium stock of plants, med stock of various community fish.