Why can't the fish in the ceramic jar be kept alive?

Many friends who keep goldfish know that goldfish prefer moss water, and they also know the importance of sunlight and moss water for keeping goldfish. But for the sake of beauty and elegance, most of them choose high-grade and atmospheric ceramic tanks to raise goldfish indoors, and throw away things like water tanks or pottery pots.

Those who really keep goldfish are not raised in clay pots.

In fact, on the contrary, real goldfish are not kept in ceramic tanks, and most of them are just for temporary viewing, which involves two problems:

One problem is keeping goldfish indoors. We usually choose ceramic tanks, because the light we can see when keeping goldfish indoors is not particularly strong. If the water quality can't be treated, we can add a filter system to at least facilitate the connection of electricity.

The other is that in the past, fish friends kept goldfish outdoors in water tanks or clay pots, and only when they were watching, they moved them to the indoor fish shallow pool for appreciation, which means that raising and watching are definitely two different operations.

In other words, ceramic tanks are not suitable for keeping traditional goldfish, especially outdoors.

It is easy to raise an altar of green water before the moss grows.

Why are we talking about this issue today? It's because a fish friend put a clay pot outdoors and wanted to raise goldfish. But the old fisherman doesn't mind telling the truth. When I opened the shop, I didn't want any of the three ceramic jars left in the fish shop. I gave them all away. I'd rather keep this leaky jar for goldfish. Isn't that crazy?

Actually, it's not, especially in this season, in midsummer, when the light lasts for a long time and the water temperature rises sharply, it's almost impossible for us to cultivate a crystal clear moss water in a ceramic jar outdoors.

One is that the ceramic cylinder is airtight at all, which is very important. In this sealed environment, the water in the cylinder will soon become a pool of stagnant water under the irradiation of the scorching sun. There is another reason besides impenetrability.