EheimJager Aquarium Thermostat Heater 300W

fantastic product always hi quality and reliability from Eheim, an excellent product for small aquariums, top marks

Great quality, works flawlessly, easy to use, and has the ability to be recalibrated. I did not have to calibrate mine as it worked accurately out of the box. I purchased the 150w due to my tank placement and ambient temperature in my basement. The larger sized heater has no issues keeping temps and it heats my 29 gallons effortlessly. I would buy this product again and I would recommend this product.

Listen, the temperatures aren't exact. HOWEVER, I truly think this is still the best heater!!!! The #1 concern with aquarium heaters is shattering and this one DOES NOT SHATTER if you take care of it! I have bought 4 EHEIM Jager heaters and I have loved every one of them & recommended them to everyone I know!I use these for my red-eared sliders and one of my heaters has been in use for over 2 continuous years now with no dangerous issues. Granted the temperature is off, I'm sure there is a way to calibrate it but don't even worry about it, honestly. You should have another device double-checking your water temperature with every heater. Personally, I use one of those temperature guns after 3+ years of those stupid breakable in-tank thermometers. (They never last) But, all of my Jager heaters have lasted with no issues!!!!I know I said that they don't shatter, and mine haven't, but for an added safety precaution, I also buy protective covers for my Jager heaters. They are sold on Amazon too and I'm pretty sure they're around $10. Not only will it have added protection if the heater somehow shatters & it gives a little bit of heat protection for my turtles in case they hit their foot on the heater when it was running (it doesn't get that hot, but its more of a peace of mind thing). They come with little suction cups too and I think its worth it.As general safety tips, make sure you ALWAYS unplug your heater and let it rest a little while before removing to clean. Glass going from hot to cold really quickly could make it shatter!!! No matter how shatter-proof it is! I clean my heaters every time I clean my turtle tanks (2-4ish weeks). Especially with the protective cover I have on mine, dirt can accumulate, so make sure you're cleaning every surface of the heater on cleaning days. Be careful with the water temperature you use to clean it as hot to cold really quickly is again a recipe for shattering your heater!!In conclusion, I love my Jager heater but you should definitely not trust its exactly temperature measuring as it really isn't accurate. Use another thermometer's reading (or 2 thermometers) to adjust the temperature hotter or colder on your heater. Also look into getting a protective cover, more so if you have sensitive animals such as fish. I have been buying Jager heaters for about 3 years now and I will only buy Jager heaters!

Después de sufrir unos 3 o 4 termostatos descompuestos (marcas típicas de 200-300 pesos) en los últimos 10 años, me decidí por el Eheim. Estoy muy satisfecho, y fue excelente decisión. La calidad es evidente a primera vista. El calibre del cable, la longitud, la calidad y grueso del cristal, la precision de la temperatura... cada aspecto es superior al típico regulador/calentador. Cuando algo se descompone parecería que no hay problema, que solo es cosa de cambiarlo y ya. Pero cuando se queda pegado y la temperatura sube a 38.C y pierdes todos tus peces... entonces es cuando paga el comprar cosa de calidad. Made in GermanyRecomendado !Tip: es importante NO comprar un modelo de mayor watts que los necesarios en relación al tamaño del tanque.

If you love your pets, buy this one. Using it for an year. No issues !

Very good product. I really appreciate it heats my 120 gallon tank properly.