by the way whats a planted predator reef?
You aren't the first person to ask. I made it up

. When I started keeping seahorses, which are often found in seagrass beds, I started growing a number of species of macroalgae in seahorse set-ups with low flow, moderate light, lagoon sort of environment. I liked the look, and extended it to a small predator tank.
My 55 gallon PPR tank is:
Planted with about more ~10 species of green and red macroalgae (Halimeda, 2-3 species Caulerpa, Codium, Chaetomorpha, 2 species red macro, some kind of green turf algae, etc.)
Predator - with a green wolf eel blenny, waspfish, juvenile niger trigger (and a juvenile blue spotted rabbitfish). My Hawaiian leaf fish are with seahorses now, but once the trigger and rabbit move to bigger tanks, they'll be back in.
Reef - okay, not that much of a reef - leather corals, mushrooms, a lot of different polyps, Turbinaria, couple other easy, hardy corals.