I have Fx 5 and Proseries Wet/dry with Rio 2100 (690 Gph with 4 Feet tubing ) , but my nitrate level just start to climb after a week of water change . So I was planning to add another wet/dry with Mag 7 (700 Gph ) instead of the the Fluval Fx 5 .
Any suggestions ....
Fx is cleaned every 2 motnhs
Any suggestions ....
Fx is cleaned every 2 motnhs