hey dude, tank is looking great. Hopefully your peppermint shrimp will do the trick on aiptasia. i have not used epoxy so i could not tell you if that would work on them.
I think upgrading the stock pump is a good idea, to an mj-900 or 1200. If youre using the Y splitter, a 1200 might be better. I personally have not seen the mj-1000 anywhere but if you search long and hard, you may get lucky. I'll PM you the link to where you can find the splitter for cheap!