Protec Humidifier Cleaning Fish, Tank Cleaner, Fights Slime & Odor, Lasts 30 Days, 1 Count, Color May Vary

This works great! Purchased in November and it lasted until January with consistent use. The fish is super easy to use, you just drop right into the humidifier and it does its thing. It keeps it clean, with no smells and is safe to use. I definitely got my money's worth from this and will be purchasing more!

The Protec Humidifier Cleaning Fish is a small but mighty helper for keeping my humidifier in perfect condition. I’ve been using these for over a year now, and they make a huge difference — no more slime, buildup, or musty odor in the tank! I simply drop one fish into the water tank, and it works continuously for about a month, keeping everything cleaner between deep washes. It’s especially helpful for ultrasonic and cool mist humidifiers, which can develop residue quickly. The fish keeps the water clear and fresh, and I’ve noticed less mineral buildup and fewer cleaning sessions needed. It doesn’t affect mist quality or smell, and it’s safe to use around kids and pets, which gives me peace of mind. The best part is the convenience — just replace it every 30 days, and your humidifier stays in great shape. It’s also fun that the fish comes in different colors, which makes it easy to spot in the tank. For such a low cost, this little product saves me a ton of time and keeps my humidifier performing like new. Highly recommend for anyone who uses a humidifier regularly!

Unfortunately this doesn't fit in many humidifier tank openings (even though it would fit in the tank itself) due to the fins of the fish. I would appreciate a thinner cylinder so it was more versatile.

Purchased this to keep my humidifier clean. Definitely does the job! Cheap and effective. Will repurchase another one when this one needs to be replaced.

Works good and looks cute floating in the tank

These work well in our cool must humidifier.

I am not sure that these really kept the humidifier cleaner. We use water from our reverse osmosis system and i still feel a layer of gunk on the humidifier. The kids love to see the “fish” in the humidifier though!

This little fish is definitely helping keep the inside of the humidifier tank clean. I used to have to take it apart, clean it the refill at least every week. Now, I am not seeing any slime, I just refill the water.

Mantiene limpio el tanque por ser un veneno que mata bacteria y mohos. He comprobado objetivamente (con un medidor de contaminación del aire) y subjetivamente (me arde la garganta si lo tenga cercas) que contamina al aire, lo cual invalida la idea de utilizar un humidificador para mejorar la calidad del aire. Mi humidificador es en frío, quizás con un humidificador de vapor el veneno no sale, eso no lo he comprobado. Sí queda limpio el tanque, en ese sentido cumple, por eso le doy dos estrellas.