Single Bacterial Strains From Vodka Dosing?

[Myka]

Bayside has MB7.

The return flow is not considered in flow, and the HOB filter wouldn't really do much for flow. I have one of those 425 gph Koralias in my 10 gallon nano and it is barely good enough for that size tank. The flow doesn't go very far. I think you'd be best off considering just the 4x1400 gph powerheads as contributing to overall flow which is 5600 gph and your tank is what...100 gallons or something? That is 56 times turnover which should be ok if you have them pointed well. Try moving their direction a bit so there is more flow reaching the rocks. Turnover is not expressed in percent.

What skimmer you got on there?