I don't do wick watering, but I know what fur you're talking about. I've seen that before on mine, but in very limited quanities... most people wouldn't notice it. I'm sure it was a day or so after I watered.

It is probably some mold, and will clear up with a shot of lysol spray sprayed right on it. Try to keep the spray off the plant, so lift up the leaves the best you can.

Barbara

I had that problem too with my wick watering until I started adding a teaspoon of Physan 20 to the water that I was using to fill my jars.

I haven't experienced any fuzz or algea in months.

It's just 1 tsp to one gallon.

I don't buy it from the link below but its a good educational source to begin with.

Dora

Here is a link that might be useful: Physan 20