Hi Flow users
I have tried a few things the replace the corflute base of the Flow hive with something to fill with oil to catch small hive beetle. Recently, I found the (almost) perfect thing.
Its a tray from Ikea, called Poppig. Its $10 in Australia. Food-safe, rigid, should last forever. The lip slides into the grooves in the Flow hive. Its flat enough to be used in the top or bottom slots.
I say almost perfect because it was just a touch wide for my hive. I had to shave off about 1mm from each edge. I used a rasp (a coarse file) and then some sandpaper to smooth. Length-wise its a perfect fit.
The view from below - please ignore cobwebs.