Biocube 2nd chamber really low?

[GHOSTLY]

Ive been really needing a new protein skimmer and all the goods one fit 2nd chamber. Does this seem low to yall? Also any idea how to remove the grate in chamber 1 and 2

 

[Saltyreef]

Yes its low, add water until the level cascades slightly into the chamber.

 

[GHOSTLY]

Yes its low, add water until the level cascades slightly into the chamber.

Should I fill directly in this chamber or just in display

 

[Tahoe61]

Either. Give a min before continuing to add water it takes a couple seconds to catch up.

 

[Saltyreef]

Should I fill directly in this chamber or just in display

What @Tahoe61 said. Either will raise the level in the back. I usually pour the water into the back directly as I dont like waiting for the level to rise based on the drain rate lol.
Ive had multiple AIO's over the years but on my first one I really struggled to understand how the water level and chambers worked. It was my favorite tank though. JBJ 30 rimless.