In case the smaller one does the job,why to waste more money on item which is also consuming more power.Got my point?Either one will work on the 120g. I’d go with the cheaper one or whatever works for you.
Do you think that fx4 can solo the 120g?The power difference is not significant. The extra bio in the FX6 is the reason I say FX6....I run both on my 180 and an FX6 solo on my 120. Both filters are really good.
With enough water changes and light stock anything is possible. The FX4 moves lots of water. if you occasionally skip water changes or plan on larger fish I would spend the extra $$ on the FX6.Do you think that fx4 can solo the 120g?
Thanks mate.I will go for the bigger one?With enough water changes and light stock anything is possible. The FX4 moves lots of water. if you occasionally skip water changes or plan on larger fish I would spend the extra $$ on the FX6.