Thank you! Unfortunately, I dosed this tank with Tetracycline, according to the betta exporter's instructions, but didn't realize I needed to keep it out of the sunlight if I did so. The water turned pinkish brown. :-/ Then I tried to change the water, didn't pour slowly enough, and muddied the whole thing up. Sigh.
On the plus side, I have fantastic clay soil in my backwoods, which I didn't realize when I planted this tank, for which I actually used a soil that's not recommended. So now I'm going to dig up some good clay, tear it all down, and hope I can get the planting as pretty as I had it before! Wish me luck!