i thought that it was acrylic when i started the project, but after i burned out my dremel tool on it i decided that it must be something a little tougher, maybe its plexiglass? either way making the dividers would have been the same process.
i did notice after a few days that i could grind up flakes and sink them to watch the circulation, its not near as much as i would like tho so im contemplating adding maybe a very small
powerhead to increase the movement. i could probably use one size up on the filter to accomplish the same thing tho. i might give that a try instead.
im also trying to come up with a good method for vacuuming the rocks in each section, the only thing that i have come up with is to stir the gravel and release all the yuk, then use a cup to dip water out. its not very efficient and i dont like clouding the water up with trash tho.