Review on Efficient GFO PhosBan Reactor 🐠 550 - Two Little Fishies ATLPBR550 by Djkutt Mack

I've been running a 120 gallon miniature reef for 18 years and I've had a hell of a time with my phosphate levels. I have several major surgeons who love to eat, so every kibble seems to remind me of my next water change. The CPR skimmer does most of the hard work, but I settled on a phosphate reactor after talking to the guys at the new fish store I found. I set it up, which was very easy, and after two weeks of taking Fosban my phosphate levels dropped to zero. This will likely reduce the number of water changes by more than half. It seems to work very reliably with a 300 GPH pump in the sump. For the price, this is a pretty effective tank upgrade. I'm glad I got it. A SMALL CHANGE - The o-ring that seals the top screw is a "wearing part" that seems to lose its shape over time. The O-ring is critical to prevent leakage from this device. I just ordered a replacement for $5.20. Phos-Ban is expensive, but it is important to keep phosphate levels low in a fish and coral tank. Vaseline ring. Not enough to get in the water, but enough to keep the o-ring off the dry plastic while tightening. HERE where the flow from above; Bending of the sealing ring