getting rid of fungus

there has been an ongoing problem with fungus on my fishies taials the past couple of weeks especially on my silver dollar I keep treatin it with king british it goes away but then always comes bak how can I get rid of it for good ??

C W

 

Craig what kind of water changes are you doing? Is the pictus cat maybe nipping tails at night? Since I'm not familiar with King British I don't know how it's used.
Carol

 

weekly water changes at about 20-30% he could b nipping tails but iv never seen him do that b4 hes very peacefull I'm not 2 sure the silver dollar gets white patches on its bak fin u c and 1 of my female swords has a smaller patch

but I did notice a piece of 1 of my female mollies tails was biten off I thought it may hav been my male swordtail chasing her

C W

 

The question about the Pictus was just a shot in the dark. My daughter had a beautiful Pictus and her fish kept missing fins and he was doing it at night when the other fish slept.
water changes sound good.
Carol

 

from what I see my pictus is non stop all nite it hides away in his cave durin the day only comes out at feedin time at nite he swims up and down the glass and bak and fourth lol over and over again

C W