Just like the weather in March and spring. It is said that the heating rod should be completely put into the water.

Put two thirds and it won't explode. The instructions say that only the front section is exposed, that is, the end connected to the wire (the end that can be rotated to select the temperature), and it may leak if it is completely put into water. There are many kinds of heating rods, one is stainless steel on the outside, and the other can be completely put into a fish tank. Generally, you only need to expose your head when you put it in water. Generally, you can buy a 40-50 yuan tank (one meter tank) and 25 tanks under 40 cm. Yes . . bend

Don't look at the month of temperature. It is the best condition for tropical fish to keep 28 degrees, but every tropical fish is different. Your living conditions seem to be 20-35 degrees. You 1 1 use the heating rod from the middle of the month to the middle of March of the following year, and just take it out and put it away at other times.