I've been meaning to ask. Are you still keeping the pothos underwater?
I've been thinking about throwing some in one of my tanks but didn't know how it would do long term when submerged fully
Yes I am. The fish love swimming between/resting around it. Vine type pieces adapt quicker than pot bound bushes. You will get some leaf/stem melt but keep trimming and it will adjust and grow. Use red/blue spectrum in your lighting. Pothos needs more high intensity light when submerged. Make sure you have long chunky roots on your pieces!