Hi, I've just bought a new aquarium which has a built in filter in the corner.
I'm just wondering why it has three gaps in the bottom section where the pump is situated. Does anyone have any experience with these kind of filters?
I have another tank that is smaller but has a similar built in filter but without the gaps.
It just seems to me that less water will be passing through the filter media as it can just come through the gaps straight to the pump and be squirted back into the main tank.
I am wondering if i should block these gaps but i think they must be there for a reason.
Any feedback would be greatly appreciated,, thanks.