I have a 100 g densely planted well stocked tank running on eheim 2217 and sunsun 303b. Water has always been pristine. For a 65 g what u have suggested is enough. 10x may be ideal but we don't live in a ideal world. Filtration is important but not as important as good flow. So 2215 and f305 r fine. Just make sure u r getting flow all over with some nano koiralas.
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