Recommended L/h On A 90 Litre Internal Pump

[Peter C]

Git a 90 litre uk tank, my pump does 450 litres per hour

Is this ok? Or ideally do I need more?

Cheers

 

[OldMan47]

It sounds fine to me unless you are into very high tech planted tanks. High tech planted tanks run at a value closer to 10X flows to make it easier to control algae while you are at a nominal 5X flow.