Hahahaha I hear ya, to be honest, I purposefully didn't choose deep ocean cause I thought itd make it "too easy" .. maybe a shallow waterfill tile could be a good compromise to shallowify the deep waters... I can't remember but I think I made it so they could grow in shallow nauvis water for a bit of fun panspermia... but could be mistaken... maybe I should do that update too.
Honestly this was one of my first mods, and is also one of my most popular - which puts me in the tricky position of wanting to give it some TLC, but also not changing it too much and annoy too many peoples builds! haha