Sorry.......no pic yet.

While cleaning out my inground stocktank, I discovered a ton of stuff I hadn't really seen before. At first I was going to throw it out, thinking it was algae, but decided to keep it until I figure out what it is. Its long, thin, dark green stems that have frequent tufts of small green "needles" (really thin leaves) along the stem. My water has cleared up really quickly and I'm thinking whatever it is, its a good thing!

Any ideas on what it might be? I think its a submerged oxygenator, but not sure which one.

Thanks.