Mr. Zhang is a merchant selling ornamental koi in Dalian. In order to facilitate one-stop shopping for customers, he also sells filter brushes. Recently, he discovered that his family's brush filter aquaponics were badly sold, which also affected the sales of other products. Because it is not expensive to supply it as an accessory, the cheaper the supplier's incoming price, the better.

Mr. Zhang found us through a Baidu search, explaining the problems he encountered, and at the same time he sent us his existing samples for analysis. Through investigation, it was found that there was a problem with the raw materials of the brush filter aquaponics he purchased. The sample rubber wire he sent received was dark brown, and after burning, there was thick black smoke and acrid stench. Trace elements released by long-term cultivation with such filter brushes will affect water quality and damage the health of koi. After listening to the analysis, Mr. Zhang first tested the samples by himself, and at the same time understood that the reason why the customer did not ask him to purchase was consistent with our analysis, so he immediately ordered 3,000 trials.

Six months later, he called back and said that his business is the same as before. Thank you very much for our professionalism. We not only insisted on using new materials to produce the brush filter aquaponics, but also solved the problem for him.