hulkamaniac
Aquarium Advice Freak
About 6 months or so ago I was browsing for fish in my LFS. The owner was tearing out a handful of some sort of topwater plant. He offered it to me (a frequent customer) instead of throwing it away. Now, I had just really got started on the planted tank thing and I've never said no to anything free anyway so I accepted. It turned out to be duckweed. It has taken over 3 of my 6 tanks and is threatening a 4th. I scoop out two handfuls at least every week or so, but it still comes back. Is there something I can do to get rid of it, or some fish I can consider adding to eat it? It's got so bad that it was growing in my filter and clogged it up. I'm open to any ideas no matter how nutty.