Thanks. I wish we had a page with the details and pics.
My Java fern (lace fern) leaves have become light brown in some areas. I am not sure if they are dying. I don't think there is any deficiency of nutrients. Instead, I started EI regime 1 week ago. I dose Excel for CO2. So, if they are lacking anything else, it would be CO2.
55 Gal Tank with: Eheim 2213 Canister, Hydor Inline 300 Watts, 2X54 Watt (6,700K & 10,000K) T5 HO for 7 hrs, Excel for CO2
3 Discus, 4 Mollies, 2 Tetras, 2 SAE, 1 Pleco,1 Platy, 1 Zebra Danio, 1 Snail
1 Cryptocoryne, 1 Java Fern, 4-5 Unknown, Dwarf HG, Some baby tears