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
TWO-IN-ONE
In any bedside table somehow is always not enough space, and galoshes-ence in the hallway is no exception. It is necessary to store both shoes and boots and Slippers. But to cram it all...
How to make a cider press with your own hands
Freshly squeezed apple cider is incredibly delicious. It's very different from store-bought apple juice and much more enjoyable. But, as a rule, such cider is not cheap. However, apples...
