Man, two jobs, holidays, big projects.
Anyway, the 5g bucket still lives, though I had a plant-crash - possibly due the diatomaceous earth, but I also sprayed lavender essential oils at it, and it was closer to that, that it crashed. It was an attempt at flea, well, it turned out just to be flea-mild-repellent.
I need to 'reboot' my plants, but the fish are still fine. I've just tossed in Chia seeds in the meantime.