04-17-2017, 09:17 AM
Join Date: Apr 2006
iTrader Positive Rating: 100%
| | Re: Eheim classic 600 or Eheim classic 1500XL?
I have an Eheim 2217 (classic 600) on all my tanks ranging from 29 to 75 gallons and it works fine. Eheim classics, in general, are not known for their flowrates - they tend to be on the inadequate side for anything greater than 20 gallons, esp for planted aquariums where plants slow the flow rate of things considerably. Eheim classics are known for (1) being super quiet and (2) super reliable. I find them easy to clean but admit that the other types where the tubing connects on the top for both the intake and outtake lines are easier to clean.
I have an Eheim XL classic filter (not sure which model im afraid) and its HUGEEEEE. Its way overkill for anything most people have. The filter media volume is ridiculous.
And yes, if you really need to decrease the flow rate from the canister filter, you can adjust the disconnect valves but i honestly dont think you will need to.