What problems should be paid attention to in hotel fish tank design?

This is complicated, so I suggest to consider the following questions.

1, the filter tank or the bottom is safer;

2. Let's see how many groups of temperatures are needed. The temperature requirements are different, and the machine may be different. For example, some require 4-6 degrees. Although rarely encountered, there are some seawater species. Each group of temperatures is equipped with a heating and cooling machine, and of course there are two;

3. The fish tank should not be too high, and it is difficult to photograph it if there are many floors, shallow water level and low temperature requirements (shellfish platform and ice platform are counted separately);

4, the heating and cooling machine must be installed outdoors, otherwise it will definitely have an accident, either bad or not, or the temperature will not drop;

This thing must be used by experienced and inexperienced people, with a snot and a tear. I planted a lot of blood lessons in those years.