so i decided to get rid of those all in one cartridges that come with small HOB filters. i redid my EX20 on my 10g with 3 layers of Deep Blue ployfiber, 1 layer of amonia remover, and filled the rest of the space with as many fluval C-nodes as possible and my water has never been clearer. i will definetly be customizing any small filters i get from here on out... i also added a DIY sponge filter to the tank as weel
now that i think about it, should the amonia remover be after or before the c-nodes?






now that i think about it, should the amonia remover be after or before the c-nodes?





