TWO OPTIONS OF HEATERS FOR AQUARIUMS OFFER OUR READERS. Uniform temperature in the aquarium keeps the water-filled Cycling or any other appropriate size camera. It is placed as shown in the figure.
S. KINDLER, Saratov
Heaters that are commercially available — with a filament and salt, or bulky, or too powerful.
“Semiconductor” heater:
1 — wire bracket, 2 — tube, 3 — sand, 4 — tube, 5 — resistor, 6 — power cord with plug.
Within a few minutes you can make a “heating” coal resistors type MLT, VS-2, MT-2, etc. with a capacity of 2 watts. They are inserted into the glass tube, the ends are attached to power cord with plug and close the vial stopper. The power of the heater can be more than 20 watts.
V. BEDNYAGIN, Novocherkassk
Recommend to read
ANOTHER PULLER
There are many tools for implementing, in General, simple everyday transactions - the separation of the Apple from the branch and transfer it to the trash. We offer our readers another...
NOT WORKING? MAKE!
On the shelves of the "Young technician" to replace the outdated MK-12V has received a new domestic micro-DISTRICT is 2.5. However, unfortunately, the present mass model was not too...
