duckweed and tanks...ahhh, this takes me back...DON'T DO IT!! took me ages to get rid of the dam stuff that hitched a ride on a pond powerhead that was in the tank when i got it. Couldn't believe how fast it grew and took over.
try foxtail instead, just as fast growing but wont take over
Why the refuguim though. I understand them in a marine setup but what are you trying to keep out of the main tank in a freshwater tank? just plant the main tank and use the space for more bioballs
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