10-19-2011, 08:50 PM
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I have a 55 gallon tank and I'm running not a really fast current filter but fast enough that the duckweed never can settle. The filter is a hang on that is right in the middle of the tank and there is no where else i can move it, so i put up two pvc pipes to push the current down and keep the duckweed in the same place with a still surface. This worked well for a couple of days until recently the pvc pipes have been falling into the water releasing all the duckweed and i have to set them up and start all over again. Any ideas on how to keep the duckweed and not change my filter?