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
FLOWER GARDEN IN THE HOUSE
When the house took a stand for flowers, just wanted to buy it, but after visiting a few shops, did not find anything suitable. So I decided to take up the matter himself. Present their...
THREAD INSTEAD OF TAPE
No, the Council is not for Amateurs. Although for them, too, because everybody who is going on the road, among other things, I'll try not to forget the needle and thread may come in...
