A few tips for successful BB detritus removal....
> make sure you have space all around the rock structure to siphon out obvious detritus on your first round of siphoning.
> clean glass (so detritus does not get stuck on the microaglae), then baste rock the day before water change and detritus siphoning.
> turn off filters/powerheads before siphoning detritus.
> lots of detritus can settle under the rock, so make sure you can baste under the rock. I baste from front to back, making it easy to do the second round of siphoning.
> siphon detritus weekly and clean filtration material in outgoing changewater for best results.
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