if the total sum of media is higher in the 3 then the FX 5 then defiantly go with the 3 filters!!
if u have one filter and it breaks then ur screwed, but if u have 3 then u will have 2 more to back it up just in case something happens to 1!!!!
i use the FX 5 and an Eheim 2028 on my 120G, it gives me peace of mind knowing i still have one filter operating if one fails.
if u have one filter and it breaks then ur screwed, but if u have 3 then u will have 2 more to back it up just in case something happens to 1!!!!
i use the FX 5 and an Eheim 2028 on my 120G, it gives me peace of mind knowing i still have one filter operating if one fails.