I just updated to 1.14 today and I can't even bone meal them to make them grow consistently. Does this have something to do with the growth height limit that Java has?
@Hayden Kelp isn't supposed to care about light levels/sky access or biome. https://minecraft.gamepedia.com/Kelp#Growth_mechanics
I just read the release notes for 1.14. Was this an attempt to fix a lag issue with kelp growth? I was getting about a third to half of a row of kelp before the update each harvest(using a daylight sensor) and now I'm getting about 5 to 10 kelp. I just built this a few days ago, please tell me I don't have to tear it down and redesign a new one.