HOT TAKE ; )
The best heater for a tank up to 10g is the Lifegard Preset Quartz Glass heater. I have the 50w, it is nearly half the size (see build thread) of the eheim jager/oase/hydor and keeps my 4g at a steady 79.
I used the 100w versions that come with the lifegard 7g tank for 3 years with no issues, I researched the hell out of heaters and bought/returned 5 before settling on the Lifegard. The downside is that it is preset and I'd prefer to keep the tank at 74-76, but to save the space its worth it.
I also picked up a cobalt neotherm 25w but I've seen too many R2R nightmares about it exploding to put it in a sw tank yet lol
The best heater for a tank up to 10g is the Lifegard Preset Quartz Glass heater. I have the 50w, it is nearly half the size (see build thread) of the eheim jager/oase/hydor and keeps my 4g at a steady 79.
I used the 100w versions that come with the lifegard 7g tank for 3 years with no issues, I researched the hell out of heaters and bought/returned 5 before settling on the Lifegard. The downside is that it is preset and I'd prefer to keep the tank at 74-76, but to save the space its worth it.
I also picked up a cobalt neotherm 25w but I've seen too many R2R nightmares about it exploding to put it in a sw tank yet lol