I was out at one of my local creeks yesterday looking for shrimp and instead collected another plant that I want to grow in my tank. The only problem is the best way to clean the plant to try and ensure I don't intorduce any nasties. I have already given the plant a good wash under the tap, and have picked off the seed shrimp looking critters (they where orange and black instead of white like the ones that are already in one of my tanks) and checked it throughly for snails and eggs. The plant is now soaking in some straight tap water, is there any other things I can do to try and make sure it's clean?