SD-Switch Loop protection - active or passive?

Dear forum,
i have connected 2 x Peplink sd 24 switches using each switch‘s port 24 with 2 of my Balance router‘s LAN ports. To enhance fail-safe reliability, i also connected both switches using glass fibre channel via port 25 and turned on Loop protection (active mode) for both.
Is that correct? Or do I have to configure one of the switches to be in passive mode?
Did not understood the difference in detail acc. To the manual….
Kind regards

Does noone has any comment on this topic?
@sitloongs : can you maybe please help me further?