My planted set up has come down with a stubborn, apparently treatment resistant strain of whitespot. So far I've had a complete wipeout, waited a week & started restocking, & it's struck again over a week ago. It has so far resisted:
Protozin;
NT Labs whitespot treatment;
WS3;
Sterazin (which one shop I've used for decades said to use for so-called 'super spot')
All of the above have been combined with temps raised to 87f.
Most of the fish have died, but a trio of empire gudgeon seem unaffected by this parasite & they alone have no spots of signs of illness.
Can anyone help?