Hi
The filter looks good.I imagine will polish the water very well.Do not worry about how much surface for biological bacteria U have on them.The bacteria will colonise all surfaces of your tank.Most of your filtration will be carried out by your plants and the substrate arround them.Just keep the flow good.Do U know the sponges what ppi rating they have? How often do U have to clean them?
Regards Konsa
ppi is 30
not sure about the cleaning, i hope it's going to be very rare
can i ask you to check the video i uploaded, if you'll have the time for it? post 34
i would need some advice on the position of the lily pipes and the flow in the tank
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