Vortech size for 30g tank

[Sagaris]

Hi,
I´ve set up a 30g nano tank and I have a spare mp40 from my last tank.
The thickness of the glass is 6mm.
Would you let the mp40 run with the lowest power setting or change to a mp10 ?

 

[Alex Y EcoTech]

Sagaris,

Since you already have the MP40, I would recommend trying that first. If you find it is to much flow, swapping it for an MP10 may not be a bad idea later on.