Hi, I purchased a new plant two weeks ago, however it appears to be developing brown spots. I’m not sure if this is normal for this type of plant but wanted to check (photo attached). I currently have the aquarium light on for 4 hours a day, have a canister filter and run a bubble wall for about an hour a day to provide additional surface movement alongside the filter. I’ve also been adding API Leaf Zone to the tank on a weekly basis. Thanks!