The black shell shrimp in the fish tank have almost disappeared, so today the wild harvest returned a hundred or so large black shell shrimp. Before entering the tank, it must be quarantined to remove parasites from black-shelled shrimp, including worms, shrimp leeches, planarians... I have checked the information on the Internet before, all said that brine is the most effective and safe method, but about the proportion of brine, how long the soaking time is not a detailed statement, put less or short bubble time and afraid of killing undead parasites, put more or soak for a long time and afraid of soaking dead shrimp. After many experiments, I finally found a time that can be said to be perfect proportions.
Preparation: First of all, the shrimp should also be normally overheated and overwater, can not be careless, soaking salt water is best to use the original shrimp water. Because it takes several times to soak in salt water, it is necessary to dry the water in advance, and you cannot use tap water directly, which everyone should know. Salt can not use edible salt, to use water salt, a treasure is like 1-2 pieces of a pack of it.
A liter of water put 20 grams of salt, must burst oxygen, completely dissolved and then soaked for 8-10 minutes, pay attention to the time, can not be less than 8 minutes, because this concentration is less than 8 minutes, some of the worms can still be active. After soaking, fish out and raise the left alone, soak again the next day according to the first step, then soak once on the fourth day, and soak again on the sixth day to perfectly remove the parasites. Because the parasite has a cycle, the adult worm will lay eggs in the shrimp body, the salt water can not be killed before hatching, so it can only wait for him to hatch and then bubble, so why bubble several times is because of this.
Figure 2 The white dot is a dead worm [tear running]
