Love Ray

Love rays are large manta rays with a wingspan of 50 feet. Green on the top and softly glowing on the bottom, love rays feed purely on sunlight and plankton.
They also generate life- generating coral, increasing abundance, and increasing natural healing wherever they go.
They have 3 articulate spineless tails they can use to manipulate objects- they can also use this to "lay on hands", healing the wounds, diseases, or poisons in any living thing.
All wounds, diseases, or poisons healed are visited on anything that eats the love ray.
Love rays live for 200 years and reproduce at a very slow rate. They can activate almost-sentient intelligence, but rarely do.
Love rays would be created at the central tropic straights