Personally I like to drill the holes a little bigger, say 3/16. It will cut down on the velocity coming out but allows for the maximum volume to pass through on a more consistent basis, because they dont get packed up so easily. Im not saying you need to do this, just something to think about
Also is that a heater I see in the back left? Unless the temp dips way below 70 I would avoid a heater like the plague. The cooler the better for plants, especially in a high energy tank. Sudiorca touched on this recently in great detail. Big difference for plants in the lower 70s than the upper 70s for example. If you have fish that need high temp (I dont see any), Id get different fish