I am new to plant keeping and about 2 weeks ago I bought a bunch of hornwort. I then added sand to my tank so I put the plant in a bucket of water. Once the dust settled and I put the plant back in it lost much of its leaves and most of the rest turned brown. I thought I was going to loose it but it is quickly making a come back. Three stems have shot up like crazy and the other stems are all getting a nice shade of green. There are still a lot of brown leaves on the plant and they are slowly falling off and getting stuck on the filter intake. My question is what should I do with these dead leaves? I thought of maybe putting it in a bucket and trying to shake off the dead leaves. I also thought of trying to clip off the stems that have most of the dead leaves. I don't want to kill it as it's becomming, partly anyway, a nice looking plant. What do you suggest?