nickb144
Aquarium Advice Apprentice
Hi. Please can anyone help. I have a 30 gallon tank with 4 catfish and 4 male guppies at the moment. I will be gradually adding more fish over the next month. Maybe few neon tetra, mollies and barbs. I bought a Eheim Professional 3 250 external filter. This is first time I have used an external filter with the various media included. Please can anyone shed some light on how often I should be removing and cleaning the media. It includes the following:
EHEIM MECH PRO ( bottom container)
EHEIM SUBSTRATE PRO (middle container)
WHITE FILTER FLEECE (in screened cover with substrate)
BLUE Pre Filter (top)
Also how often will these need to be replaced with new and should I only replace half (mech and substate pro) to keep bacteria in filter.
Thanks in advance
EHEIM MECH PRO ( bottom container)
EHEIM SUBSTRATE PRO (middle container)
WHITE FILTER FLEECE (in screened cover with substrate)
BLUE Pre Filter (top)
Also how often will these need to be replaced with new and should I only replace half (mech and substate pro) to keep bacteria in filter.
Thanks in advance
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