Question on baffles position on homemade sump with Fuge

[FreahSaltyGuy]

Hi all, hope someone can give me good advice cause I'm going crazy lol. I have a 75 gallon sump. I have placed the baffles you see so far the last one is an adjustable gate that I just didn't put in. So I have 1 - 14" high baffle left. I was suppose to put it after the adjustable baffle before my return pump to help with micro bubbles but when I tested the system before baffles I had zero micro bubbles. So I was thinking of putting the last baffle at the very beginning raised 3" up to have water go under right after the drains water coming in and I decided to make the fuge 1st so I was thinking if I did put the baffles raised up water would rush underneath and help spin the chaeto. Is this correct? Or should I place at end as a bubble trap?
In picture the 14" baffle is just leaned up against the last adjustable baffle.

Thank you!

 

[Coral reefer]

Did you test with a skimmer? That’s where the micro bubbles will come from

 

[FreahSaltyGuy]

Did you test with a skimmer? That’s where the micro bubbles will come from

Yes I did and had no issues.