Fairy Wrasse splashing water etc

[Palmer]

I have had a fairy wrasse for about 10 months. Just recently when going up to the tank to feed I occasionally notice a huge splash at the surface (i have eggcrate on the tank) that was never there before. Even though it happens so fast i can't see it I think it is my fairy wrasse either getting startled and trying to jump or aggressively going after the food. Its suprizing since it never used to happen and it normally does not feed aggressively like that. Any thoughts? The only change I have made recently is putting a vortech MP40 in the tank....