[Patcher1]

I have a Fluval FX 4 running on a 90 gallon tank. Is the FX 4 sufficient long-term for 12 to 14 peacocks and haps under say 7 inches?

 

[DJRansome]

What is the GPH? Shoot for 8X to 10X GPH turnover.

 

[Patcher1]

I believe the FX 4 has 700 GPH without media. I was thinking about adding another canister as a backup.

 

[DJRansome]

Always good to have a 2nd filter in case the first has issues.