My Royal gramma died yesterday, it started with a little mark on one side of its body looked like a cut. Then had a swollen and cloudy eye. Right before it passed away it had mucus covering its face and gills causing it to die. Is this brooklynella? If so should I quarantine the 2 clowns I have in my tank (and medicate with metroplex) and have a 6 week fallow period. The clowns have been perfectly fine since the beginning and have always eaten well and and stayed active. I’m buying a 10 gallon starter kit to quarantine fish before adding in the future. Any advice I need help and don’t wanna lose the 2 clowns that have been with me for about a month and a half.