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expiredPerrumpo posted Nov 30, 2021 05:28 PM
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expiredPerrumpo posted Nov 30, 2021 05:28 PM

Eheim Jager 300-Watt Aquarium Thermostat Heater $25 at Amazon/Chewy

$25

$35

28% off
Amazon
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Amazon has Eheim Jager Aquarium Thermostat Heater on sale starting at $24.99. Shipping is free with Prime or on $25+ orders.

https://www.amazon.com/EHEIM-Jage...003I5UC0W/

Chewy.com also has Eheim Jager Aquarium Thermostat Heater on sale starting at $24.99. Shipping is free on $49+ orders.

https://www.chewy.com/eheim-jager.../dp/183234
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Amazon has Eheim Jager Aquarium Thermostat Heater on sale starting at $24.99. Shipping is free with Prime or on $25+ orders.

https://www.amazon.com/EHEIM-Jage...003I5UC0W/

Chewy.com also has Eheim Jager Aquarium Thermostat Heater on sale starting at $24.99. Shipping is free on $49+ orders.

https://www.chewy.com/eheim-jager.../dp/183234

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Model: Eheim Jager TruTemp Aquarium Tank Heater, Size: 300W | PetSmart

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Sort: Lowest to Highest | Last Updated 9/16/2025, 11:36 PM
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Amazon$33

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21 Comments

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Nov 30, 2021 05:45 PM
159 Posts
Joined Nov 2009
msclmnNov 30, 2021 05:45 PM
159 Posts
Thanks
Nov 30, 2021 11:16 PM
465 Posts
Joined Sep 2003
NukelerNov 30, 2021 11:16 PM
465 Posts
If you haven't replaced you aquarium heater in the last 2 years now is the time. Buy one or 2 of these and replace them. Heater are not designed to last very long and when they fail everything can die before you get home.
Nov 30, 2021 11:31 PM
2,279 Posts
Joined Dec 2008
SimoleonNov 30, 2021 11:31 PM
2,279 Posts
It's been this price for the last month or so, but worth mentioning for our surprisingly thriving SD fish community. I bought two of the 300's for my soon to be built 75 gallon Discus tank. Love having two on opposing ends of the tank and having a backup when one inevitably goes out. Especially when you've got fish that need 85 degree water.
Nov 30, 2021 11:50 PM
9 Posts
Joined Nov 2013
bigdib18Nov 30, 2021 11:50 PM
9 Posts
Thanks, picked one up
Nov 30, 2021 11:59 PM
1,195 Posts
Joined Oct 2013
BV999Nov 30, 2021 11:59 PM
1,195 Posts

Our community has rated this post as helpful. If you agree, why not thank BV999

I purchased Marineland 300watt for $17.7 2 days back. 50% was takenout at checkout. No coupons.
I'm not sure if it's YMMV.

https://www.amazon.com/gp/product...UTF8&psc=1
1
Dec 01, 2021 12:01 AM
893 Posts
Joined Jan 2008
wwu123Dec 01, 2021 12:01 AM
893 Posts
Eheim is a quality brand, so bought this same 300W heater two years ago from a different site when I saw it was on sale for a similar price of $27.

My saltwater aquarium is only 75 gallons, so the 300W was a bit overkill, but I thought no harm in being oversized, since it will shut off at the right temperature. However, I didn't take into account how long it is - it was too tall to be hidden in my sump in my tank stand. I didn't want it visible in the main display tank, so I ended up hiding it in the overflow, where it just barely fit. So bigger is not always better with these heaters.
Dec 01, 2021 12:12 AM
2,279 Posts
Joined Dec 2008
SimoleonDec 01, 2021 12:12 AM
2,279 Posts
Quote from wwu123 :
Eheim is a quality brand, so bought this same 300W heater two years ago from a different site when I saw it was on sale for a similar price of $27.

My saltwater aquarium is only 75 gallons, so the 300W was a bit overkill, but I thought no harm in being oversized, since it will shut off at the right temperature. However, I didn't take into account how long it is - it was too tall to be hidden in my sump in my tank stand. I didn't want it visible in the main display tank, so I ended up hiding it in the overflow, where it just barely fit. So bigger is not always better with these heaters.
Hmmm I hadn't considered the height. Is that going to be a problem for my 75 gallon freshwater?

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Dec 01, 2021 12:25 AM
122 Posts
Joined May 2017
PatFussyDec 01, 2021 12:25 AM
122 Posts
Quote from BV999 :
I purchased Marineland 300watt for $17.7 2 days back. 50% was takenout at checkout. No coupons.
I'm not sure if it's YMMV.

https://www.amazon.com/gp/product...UTF8&psc=1
Awesome find I snagged two, I think for a 300w @ $17 and it didn't come from the warehouse is a good find all things considered nowadays.
Dec 01, 2021 12:31 AM
228 Posts
Joined Sep 2007
pillaDec 01, 2021 12:31 AM
228 Posts
Worked for me. Thanks.
Quote from BV999 :
I purchased Marineland 300watt for $17.7 2 days back. 50% was takenout at checkout. No coupons.
I'm not sure if it's YMMV.

https://www.amazon.com/gp/product...UTF8&psc=1
Dec 01, 2021 12:41 AM
1,195 Posts
Joined Oct 2013
BV999Dec 01, 2021 12:41 AM
1,195 Posts
Quote from Simoleon :
Hmmm I hadn't considered the height. Is that going to be a problem for my 75 gallon freshwater?
300watt is perfectly for 75-80 gallon.
Dec 01, 2021 12:54 AM
2,367 Posts
Joined Nov 2009
boballDec 01, 2021 12:54 AM
2,367 Posts
Warning!! These get burning hot to the touch! You risk your fish bumping into it! I had fish mysteriously die and I couldn't figure out why until one day while cleaning I touched it and ow! I replaced all the Eheim Jagers after that. Do not buy!
2
2
Dec 01, 2021 04:01 AM
312 Posts
Joined Apr 2020
JeffLoweDec 01, 2021 04:01 AM
312 Posts
Quote from boball :
Warning!! These get burning hot to the touch! You risk your fish bumping into it! I had fish mysteriously die and I couldn't figure out why until one day while cleaning I touched it and ow! I replaced all the Eheim Jagers after that. Do not buy!
Like every heater ever? Fish wouldn't die if they brush against it. Like you wouldn't die if you brush against a hot stove
Dec 01, 2021 04:21 AM
312 Posts
Joined Apr 2020
JeffLoweDec 01, 2021 04:21 AM
312 Posts
Quote from Simoleon :
Hmmm I hadn't considered the height. Is that going to be a problem for my 75 gallon freshwater?
I received mine today to use with the 75g from petsmart deal and it sticks out an inch. Not a deal breaker though
Dec 01, 2021 04:23 AM
2,279 Posts
Joined Dec 2008
SimoleonDec 01, 2021 04:23 AM
2,279 Posts
Quote from JeffLowe :
I received mine today to use with the 75g from petsmart deal and it sticks out an inch. Not a deal breaker though
Ok. Good to know.

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Dec 01, 2021 04:50 AM
722 Posts
Joined Feb 2004
vha23Dec 01, 2021 04:50 AM
722 Posts
Can I sous vide with this?

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