marrow

sorry to respond to your question two months late Cavan but I dont seem to have a problem with spread. The tank is not equally illuminated the edges are certainly not as bright as directly under the bulb. The tank ends have plants that dont really require as much light, Blyxa on one end and Ranunculus on the other end. I must say that I don't do the aquascape thing to much and tend to plant in 4 x6 blocks with taller plants towards the back. Much of the my view of the tank is from above, not from the front. Also my sole concern is cultivating interesting plants, my fish are incidental and there is no attempt to conceive of the tank as an entire composition or percept. I am perceptually much more drawn to the minutia and quite capable of being absolutely unaware of what may be occurring an inch aware from the narrow focus of my attention.