What has worked for me is to take a powerhead like a mj900 and aim it directly at the area where the mushrooms are...within a short while they release and I scoop them up and take them to the LFS for some credit.
I discovered this when I changed a powerhead and suddenly I had a mushroom storm as they all released into the water because they were unhappy with the new flow.
I need to do this again as they are taking over. I have only used this with the "blue" mushrooms so I'm not sure how well it works on anything else.
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Mark...
290g Peninsula Display, 425g total volume. Setup Jan 2013.
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