Originally Posted by cajunamy
there was/is a recall on those heaters. you might want to visit the marineland website for more info
Only the 25w+ ones, not the stealths 10 and under.
These suckers are strong. They really are. My 5 gallon tanks are heated by them and they usually get to about 83'F in the spring and early fall.
In the summer, unless its really cool, I never keep my heater on. Instead, I focus on keeping the tank at a reasonable temp and keeping it stable.
My tank (through my mom neglecting my fish while i was on vacay :/) were at 90'F...heater on...
At night. after it cooled down 10'F at least.
I still stick by the 10w, but I dont recommend in anything under 3 gallons, I really dont-- unless youre somewhere cool. Theyre strong!
The lower in tank size you go, the harder it is to heat consistently.
Period, always :(