- Reaction score
- More than 10 years
I recently installed a flow meter to one of my aquariums external filter canister and I’m getting less than half the flow rates manufacture claims. No surprise there as I understand the physics involved and know that the stated flow rates are in a perfect non restricted loop, etc., etc. So my question is, what would be a actual measured flow rate for a typical aquarium? As an example one manufacture states flow rate for a certain external filter canister is 383 US GPM and they claim that makes it good for a 100 US Gallon Aquarium. Would it be safe to say that the manufacturer has a built in fudge factor because I’m sure they know that our actual real world flow rates are much lower? Continuing with this thought, would it be logical to say using actual measured flow rate of say 190 US GPH would be okay for a 100 US Gallon tank?