Fluval - FX4 and FX6 canister filters feature a multi-functional Utility Valve drain at their bases, allowing you to empty the canister and perform seamless water changes with it! This means less
QUESTION OF THE DAY - No SUMP? No problem! You don't need it. What else do you not need? | Page 6 | REEF2REEF Saltwater and Reef Aquarium Forum
![Would a Fluval Fx4 with no/reduced media work as a chiller if I fill it with (dechlorienated) ice every few days? What if I put that in a cooler with even more Would a Fluval Fx4 with no/reduced media work as a chiller if I fill it with (dechlorienated) ice every few days? What if I put that in a cooler with even more](https://i.redd.it/j2n49bvaaq271.jpg)