Planted Tank Guru
Join Date: Nov 2009
Location: Missouri united states
I agree with other's on the Ehiem classic filter's.
On a side note,, if your water suited the African cichlid's who enjoy hard ,alkaline water,then it is doubtful the blue ram's will do well for very long for they very much prefer soft,acidic water.
You may be able to mix 50/50 tapwater, R/O water,and keep them thriving but may require some expierimenting to get mixture right for these soft water species.