Water Gardening: green goop from parrot feather, 1 by DebinSC

DebinSC wrote:
I have a container water garden that I started last summer. It had just a water lily, some parrot feather, and iris. It did very nicely in part shade. I let it overwinter in place and put a screen over it to keep out leaves and pine straw. When we had the few freezes we did get, I covered it lightly. All the plants survived. The parrot feather is especially robust, the others just beginning to put out growth (lily very tiny beneath the surface).

Here's my question: Now that it's begun to warm up, there's so much green goop around the parrot feather roots that it's looking nasty. I looked at the garden center for stuff to clear up "goop" but it was for algae and said "not for use with live plants". Is the parrot feather goop harmful to the other plants? Will it clear up as the other plants start to come back? Any solution other than to pull every thing out, clear off the goop and put 'em back in? Any suggestions would be appreciated!

Deb
PS/Here's how it looked a few weeks ago. Now that nice clear water is full of goop.