Worked very well for about 4 months and then started getting outrageously high ORP readings. Replaced the probe but the problem persisted - no way to recalibrate the unit and since it reads high - I mean like +900 high - it will not generate ozone.

Thing does make a buzzing noise that is not pleasant. Im assuming i can just run it at night, if so perhaps it will be ok. Would not want to be in the room with it running.

Works well but it is VERY noisy. Its in my basement dedicated sump room so not a big deal but I was shocked at the noise.. Its probably the loudest piece of equipment in the room.

Product failed, hard time getting replacement or refund, had to threaten allot of news coverage.

I've been running this unit for a few months now and it has performed perfectly. I have it on my 600g display and running if full blast. It's a quality product at a great price.

200mg unit, adjustable, does a 30 gallon to 425mv in skimmer return at 40%, when it rains I turned it up to 100 out of 200. No air dryer or air pump required. You will get more Ozone with a air dryer vendor told me. RED SEA with the controller is double the cost and does nothing in a 10 gallon without two (2) air dryers. Ultra Life was too strong, and could not be contained in a small mini reef with a HOB skimmer. I just changed flow pattern to what Natural wave maker recommended, just 400GPH power heads descending from top to bottom of tank (across the back behind live rock). I use the Milwaukee Instruments ORP probes with a 21mv variance, Pinpoint probes require a very high flow rate to be accurate probably intended for a sump. I ordered some Neoprene tubing for Ozone injection through silencer on a Reef Octopus HOB LX2000s skimmer rated for a 100-150? gallon tank. I always buy as much as I could afford, I have Red Sea Prizm skimmers as a back up.

Inexpensive way to use ozone in your aquarium. Built in ORP controller makes this one a no brainer.

Dual Controllers and Probes I’d read the reviews, it is cost effective, their home units even more powerful and lower prices. I tried them all, RED SEA, SANDERS, X-GEN, ULTRALIFE 1. You can run dual controllers and probes so that this unit is on when a 2nd probe agrees with ORP level, even inches apart they may have large gaps, and the results from a test solution defines your variance. 2. And/Or When the variance is to great, or probes are not consistent soak probe in vinegar and hot water for a few minutes in that order (vinegar and then add hot water. It only takes a few minutes. 3. When the readings adjust slowly, or are inaccurate with test solution (for example 450mv) reclean and test probes, if they fail again replace probes. When the vendor says six months or one year, they mean it. 4. When you are tired of air dryers buy a really big one or by Ultralife direct Ozone products that don’t require a air dryer. On these home units they state clearly 200mg/hr without a air dryer, and 500 mg/hr with one. 5. They don’t mention any of that on aquarium units, similar units that have failed after a year from Red Sea are $500 dollars. 6. I just ordered mine, if it fails terribly I will write about, I figured a X-GEN $99 dollar plastic unit ran for two years, 250mg/hr with an air dryer. They make some noise so you may get a brain tumor listening to it like I did. 7. I don’t even like the Ultralife units but you either double what you need (or more) or buy a bulb unit to lose air dryers. Some days the single unit with controller is worth it (the air dryer). 8. Buy Ultralife direct medical grade “Ozone safe” silicone tubing, resistant tubing is crap.

Dual Controllers and Probes I’d read the reviews, it is cost effective, their home units even more powerful and lower prices. I tried them all, RED SEA, SANDERS, X-GEN, ULTRALIFE 1. You can run dual controllers and probes so that this unit is on when a 2nd probe agrees with ORP level, even inches apart they may have large gaps, and the results from a test solution defines your variance. 2. And/Or When the variance is to great, or probes are not consistent soak probe in vinegar and hot water for a few minutes in that order (vinegar and then add hot water. It only takes a few minutes. 3. When the readings adjust slowly, or are inaccurate with test solution (for example 450mv) reclean and test probes, if they fail again replace probes. When the vendor says six months or one year, they mean it. 4. When you are tired of air dryers buy a really big one or by Ultralife direct Ozone products that don’t require a air dryer. On these home units they state clearly 200mg/hr without a air dryer, and 500 mg/hr with one. 5. They don’t mention any of that on aquarium units, similar units that have failed after a year from Red Sea are $500 dollars. 6. I just ordered mine, if it fails terribly I will write about, I figured a X-GEN $99 dollar plastic unit ran for two years, 250mg/hr with an air dryer. They make some noise so you may get a brain tumor listening to it like I did. 7. I don’t even like the Ultralife units but you either double what you need (or more) or buy a bulb unit to lose air dryers. Some days the single unit with controller is worth it (the air dryer). 8. Buy Ultralife direct medical grade “Ozone safe” silicone tubing, resistant tubing is crap.

This unit makes a lot of noise, not for a sump in a quiet room!

After trouble shooting my first ozone setup and replacing the ORP probe and calibration solution, I sent back my first Enaly 200 unit. Bulk Reef Supply immediately refunded me and I bought another Enaly 200 generator. I just set this unit up today and works like a charm. I have never owned the Poseidon Ozone Generator but for the price of the Enaly unit, I recommend it and you really can't beat the amazing customer service found here at BRS!

Recently purchased and put into operation this unit. Initial impressions are very positive....it's doing all that it is supposed to. The only issue I've noticed is that the ORP value from the probe (BRS probe) can fluctuate quite a bit, as if there is a loose connection. After moving the unit/wires it will start to give me a consistent value at which point I leave everything as is and slowly back away. The unit does stop ozone production when the setpoint is reached, and restarts as it should. The setpoint adjustment is a little touchy. Considering the price, I think this is an excellent purchase.