hehe, this is troublesome, depending on whether you mainly raise fresh water or marine fish, and how many days do you need to survive.

my brother is from the seafood city.

Japanese cuisine generally focuses on live marine fish and shrimp. You must be a layman. How can you make a 31-square-meter fish tank? I have been doing this for several years, but I haven't seen any restaurant that makes a 31-square-meter fish tank. According to the public notice, a 31-square-meter fish tank can only be made of concrete steel structure or giant bulletproof glass, which needs strong pressure resistance, at least more than 11 million yuan. How many tons of water do you need for 31 square meters? Do the math yourself. Can you keep the cow's materials under pressure? It takes a lot of b filtering to do it. Now the best fish tank is only 3 meters. Find out the difference between a fish tank and a fish pond.

Generally, it is 1.2m, and multiple fish tanks are separated, 1 is a good fish classification, and 2 is a well-designed water circulation filter, which is generally a three-layer structure.

Freshwater fish need filtration, denitrification, UV disinfection lamp, water cooling and heating rod.

Marine fish and shrimps are more demanding. In addition to the above things, they also need live stones, protein separators, water pumps and so on.

tens of thousands are impossible. If you just keep alive for about 21 hours, just soak in water.

The price of seafood and fresh food is different.

qq2322886 is free to talk about it.