25 replies to this topic

[Brendon]

I have a question regarding the Hydor Inline Heaters (300W). I have a 6x2x2.5 (about 800L). I was wondering how many of these I would need, I'm thinking two may be a tad too little? I have two canisters, so I assume it's no problem to run two off one and one off the other? Thanks for any help.

[Jezza]

i had 2 on my 6x2x2 and it kept up just fine...
but if you have the cash for 3, well, it never hurts to have more than needed...

[Brendon]

Thanks for the reply, I guess I can start with two and see how it goes, it's summer now so that'll give me time to save for more if I need them

[Aquotix Aquariums]

We currently run 2x 300w Hydor Inline heaters on our 8'x30"x30" display tank.....The heaters keep up with volume. It purely depends on the particular room the tank is in. The cooler the average room temperature in winter, the more heaters you require....

[tranced]

i would think that the way inline heaters work makes them more efficient than the glass ones...

[jcahow]

Just be careful with the Hydor ETH inline heaters when tightening their blue tubing attachment rings. I have a number of these heaters but I had one that one of the tubing attachement rings split on, I guess from over tightning. The attachment ring are made of kinda flimsy plastic and when they are tightened they are under constant pressure. Luckily the inline heater did not leak even with the tubing attachment ring entirely missing (which would seem to indicate they do not need to be very tight). I did contact Hydor through their website and they said they were sending me another tubing attachement ring although I have yet to see it arrive.

The heaters themselves seem to work just fine and I have 300W heaters on two Eheim canisters for a 70 gallon tank which sets in a room that can drop down to 12 degrees C in winter (it gets down to -30 degrees C outside here) and they hold the tank rock solid at 25 degrees C.