我曾经注意到小瓜虫常在鱼的皮下、尾鳍和鳃部寄生，吸食鱼体组织的营养，并刺激鱼体分泌大量粘液，因此在鱼体表形成一个个白色脓泡，遍布鱼全身。热带鱼患此病时，表现在鱼鳍上先出现白点，fish显得精神呆滞、漂浮于水面，很少活动。或者常在水草、砂石旁侧身迅速游动蹭痒。
白点病的症状：在患病初期，病fish会用身体摩擦硬物，希望藉此清除身上讨厌的病原体。disease fish body surface, fins and gills can be seen many small white dots. disease fish emaciated, floating on the water surface or clustered in a corner, very little activity. Later, the body surface like covered with a layer of white film, mucus increased, body color dull without luster.
White spot disease has obvious seasonal characteristics; the temperature range of 15-23°C is most suitable for the reproduction of small worms.
One method to treat this disease is to isolate the infected fish from others and increase the water temperature to 22°C. Stop feeding! On the second day, raise the temperature to 26-28°C and add salt and yellow powder (avoiding local infection) into the tank. On the third day, heat up to 30°C and clean filtered cotton. Generally by fourth day, you can observe that white spots on fish bodies decrease significantly but may appear swollen skin lesions which are normal symptoms caused by parasites' infection so we use salt and yellow powder as antibacterial anti-inflammatory agents.
Notice that we need to clean filter cotton every two days while adding more yellow powder! After one week when white spots basically disappear though there might still be some swelling skin lesions it's necessary for us not only observe but also feed them gradually in order for complete recovery then after observing their condition recover within three-five days start reintroducing food slowly until they eat normally before transferring them back into large tanks!
Another way using medicine such as Fish White Spot Remedy Quinocide Mercury Chloride etc., all are effective treatments against parasitic infections though toxicity is strong must not exceed dosage otherwise causing damage especially mercury-based products have higher toxicity avoid contact with skin nor let children play around these substances.
In reality many over-the-counter remedies contain similar ingredients like quinine green sulfur mercuric nitrate etc., simply follow package instructions ratio-wise adding your purchased medication if it comes in solution form dissolve accordingly if it's powdered form add till mixture turns green ensuring color isn't too dark lest overdose occur
During treatment period strictly stop feeding disallow any additional nutrients
After successful treatment continue isolation quarantine for another three-five days once fully recovered allow gradual introduction of food before returning them back into larger aquariums!
Note: This article was written based on information provided about common practices used in treating specific diseases affecting aquatic lifeforms specifically goldfish suffering from "white spot" illness caused by parasitic infestation; although I made an effort at maintaining accuracy here please keep in mind that professional advice should always be sought prior attempting any kind of intervention or treatment involving living organisms due risk factors involved including potential harm inflicted upon either human participants or affected animals themselves