I have a 75 gal freshwater aquarium, and I use two Ehiem filters - a 2213 and a 2215. When I do a water change (about once a month), I clean one of the filters. Each filter has a mechanical filter (course blue sponge), the biological filters (ehfisubstrat) and then more mechanical filtering (white floss) and then either charcoal or biozyme, etc...
A recent visit to the LFS suggested that I put all of the substrat in the 2213 and then stick to the 2215 for mechanical/chemical filtering and leave the 2213 alone (except maybe a cleaning once every 6 months).
I'm posting here to ask for opinions on this suggestion. Thanks to all!
A recent visit to the LFS suggested that I put all of the substrat in the 2213 and then stick to the 2215 for mechanical/chemical filtering and leave the 2213 alone (except maybe a cleaning once every 6 months).
I'm posting here to ask for opinions on this suggestion. Thanks to all!