About 3 weeks ago, i dropped a fan on a plant in early flower, broke some lower stems off. Just noticed, now nearly 4 weeks into 12/12 that the main stem is split open about 3" long 1/2" wide and deep. Should i put something on it? tape over tar, vaseline, bandaid. Never had or even seen this before, so if i don't hear back, i'll just tape over, around it, to keep whatever out/in.