Cause: The pathogen is trichomonad. Excessive parasites caused by pathogenic organisms in the fish and cockroaches caused the fish to become weak, slow to swim, not feed, grow slowly, and died in severe cases.
Prevention: soaking with 5% salt solution for about 1 hour, and then adopting running water to have a good effect; In addition, it can also be soaked in a 15% to 25% concentration of formalin, but copper sulfate cannot be used.
Blackout greenhouse ,Light dep greenhouse ,Auto light deprivation greenhouse,Blackout green house,film greenhouse
JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.skyplantgreenhouse.com