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- Feb 16, 2016
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In my sump, I am having difficulty in using filter sock but there is a slot between the return chamber & my fuge chamber for a sponge filter.
Although I have Tunze 9410 with its 300 µm (11.8 mil) nylon mesh, I am thinking to filter the water again when the water travels between the refugium chamber & return chamber. Overkill?
Do you folks use filter sponge? Which porosity do you use in your tank?
I understand some will say that it will become No3 factory but I think this filter sponge is much easier for me to maintain. Like take it out during weekly WC and just give it a quick rinse and slot it back between those chambers.
Although I have Tunze 9410 with its 300 µm (11.8 mil) nylon mesh, I am thinking to filter the water again when the water travels between the refugium chamber & return chamber. Overkill?
Do you folks use filter sponge? Which porosity do you use in your tank?
I understand some will say that it will become No3 factory but I think this filter sponge is much easier for me to maintain. Like take it out during weekly WC and just give it a quick rinse and slot it back between those chambers.


