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
OF EGG CONTAINER
Offer to store small bolts, screws, nails, nuts and washers, and any other such trifle — cell cardboard or plastic container from under the eggs. V. GOLOVASHIN, Rybnoe, Ryazan region.
BUGGY IS A CAR ACCESSIBLE TO EVERYONE
We live in a time when everything (well, almost everything) can be bought in a store - if only there was money. But, alas! There is always not enough money. In addition, not everyone is...
