Fluval® Pro-VAC Powered Aquarium Gravel Cleaner

SpeedyShark

If I purchase this gravel cleaner. Do I still need to change the water in my fish tank?

 

Rye3434

Yes, this is just going to remove waste from the substrate. Water changes are performed to remove nitrates which are present in the water.
 

richardg

Great for removing waste from substrate; suggest only doing half at a time as substrate also contains beneficial bacteria. Still need to change water to remove nitrates and keep PH stable
 

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