Tetra whisper 20 is a Hang-on heater of 100 Watts. It was also know as Tetra Challenger 100.
It features a dial (+ / -) on top, protected with a plastic cover.
Registered: March 2009 Location: Mtl, Canada Posts: 87
Review Date: Sat May 2, 2009
Would you recommend the product? No |
Price you paid?: $10.00
| Rating: 1
low price for power (100W),
dial: very hard and long to set up, temperature not stable
I think this product is discontinued from Tetra, however my LFS still has plenty in stock.
I couldn't get a stable temperature in my 10 gallon tank. In the instruction manual, it says you have to check the water temperature every hours and adjust the dial accordingly. I guess I have other things to do!
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