Hi all. Having recently set up my new tank there seems to be a huge amount of flow going through the sump. the tank has a sicce 5800 LPH return pump through 25mm pipe to a twin outlet. my returns are 2 x 40mm drains one is set 12mm below the weir comb and the other is set half way down the weir. It is not that noisy but just wandering if you can have too much flow? below is a bad picture of the water flowing over the glass baffle. thanks for any advice.