Hi everybody, I have a school of 6 clown loaches in my 220 gallon that I have had together for about 2 years. They are between 4 and 6 inches long. Tankmates are a Jardini Arrowana (total wimp!) a red tail black shark, a bala shark, 3 silver dollars, 2 salvinis and a "tiger loach". Recently the "tiger loach" has become particularly aggressive to everything in the tank, circling and "clicking" his fellow inhabitants. A few of the clowns appear to have rubbed spots on their skin, looking like they got scratched. AFter I noticed and did some research on the tiger, the tiger loach was removed. My question is, Is it common for Tigers to scrape or hurt other loaches, and now that he is gone, will the scraped skin heal OK or should I add salt? Also, two of them are breathing heavy....all params OK, PH = 7.0, ammonia = 0.0, etc.
Thanks!
Thanks!

