Cleaner Shrimp : Strange Behaviour

[Captainhemo]

So how do keep the seaweed sheets from just breaking up and floating all over the tank ? I wrapped one around a piece of PVC pipe and hung it in one end of the tank. Seconds after putting it in, the cleaner shrip decided he better pck away at it. Within a couple of minutes, I've got pieces frolating all over the tank, its gonna make a huge mess .
What do all of you do to avoid this ? Do use a whole sheet at once or just a small piece wrapped some pipe ?
The rate at which this is breaking up, I've gotta take it out or there will be nothing but pieces f seaweed floating everwhere

Any suggestions ? Thnx