syphon under bog wood?

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hiya,

when you vac the tank of all the poop n stuff, are you meant to lift up bogwood/driftwood and suck under there? i just get worried becoase some of mine is stacked and fish go udner there, and i am worried that i might crush them. but i guess if fish are under there its gotta be vac'ed

any help?

 

[LoachLover]

I don't really, the fish kind of stirr up the water and get the waste out of there.