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I have 10X GPH in my tanks and it handles all the debris without changes to the hoses and outlets.
If I have a crazy rockpile I use a turkey baster to blast out debris at the beginning of PWC.
When refilling I also funnel the stream through the rocks to blast out anything left for the filters to grab when they come back on.
Substrate vac is more about what is under the surface than what is on top.
I have 10X GPH in my tanks and it handles all the debris without changes to the hoses and outlets.
If I have a crazy rockpile I use a turkey baster to blast out debris at the beginning of PWC.
When refilling I also funnel the stream through the rocks to blast out anything left for the filters to grab when they come back on.
Substrate vac is more about what is under the surface than what is on top.
