6’ corn plant. Two trunks. Got it from Facebook marketplace about 8-10 months ago. When I got it it was in a pot that was far too small. I repotted it after a month. Noticed it had one trunk with limited roots (3 large roots with smaller/finer roots from the main 3). Cut out the trunk rot and let callous before repotting. Potted with Promix, pumice, perlite and Fox Farms. Kept in a room that has a south and west window. Very bright, but kept out of direct beams. Maine winter and that room has been 55°-68°, staying generally around 60°. Generally high ambient humidity housewide. This room has numerous other plants not suffering! I have neglected the corn plant. Probably not enough watering. However, the yellow leaves are concerning along with brown tips. The bad leaves are not on the trunk that had the rot. No pests. (I check all my plants constantly

). When I remember to water it, I use my well water and fish tank water. I soak the soil and let drain before replacing the drip tray. This is not a favorite plant and has been neglected, but, I’m trying to fix that!!!

Any ideas, help or suggestions??? (I have never used any commercial fertilizer on it)