Negative Positive
Title: Excellent heater
Review: I purchased this on the recommendation of several fish forums.It's fantastic! It has a dial on the side to specify the temp, and once done, it keeps it there. Very efficient way to heat a tank, as ALL water must pass through the heater to return to the tank.It's the only way I'll heat my fishtank from now on. I have no worries about an in-tank heater causing burns, or weakening the glass, as this is totally outside the tank, and in the return line from the filter (a Fluval 405 in my case). I confirmed via an in-tank thermometer that the temp that I dialed in is in fact the temp that the heater is keeping, and I've had no problems.Takes a bit of work to get it working with the Fluval filter (I had to get non-corrugated tubing at the hardware store to replace sections of the ribbed tubing that Fluval provides) but once in place, you can dial it in an forget about it.Highly recommended!
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