hi, ive recently purchased a good sized tank and am looking at different filters. i plan on keeping my frontosa's and clown loachs in there and probably some other malawi's. just wondered what is the best external filter out there for this size tank? would 1 filter be enough? ive heard several people talk about eheim and fx5 filters. from what ive heard eheim are more expensive but a better quality, please help
for an, accurate, comment on filters. we need to know the tank volume.
as for which? well the FX5 flows more than the Eheim PRO3 filters. but the Eheim has better (not more or less) biological filtration. indeed the Eheim media is amongst the best.
looking for a filter is a Bit of a head ache. many of us would suggest a 5x (real) turnover. thing is the stated flow for most makers is, actually, quoted as more than twice the true flow. ( usually measured with no media and furniture, in essence, just quoting the pump power)
the FX5 is far more noisy than the Eheim, something to think on. it also has "proprietary" pipes. making fitting things like in-line heaters a problem. that said both, for tanks of 400-500l are fine. however, if you are looking at volumes of more than that. perhaps its worth looking a a sump system.