Hole in the head o conditioner

Hi i was wondering if anyone has used waterlifes "o conditioner" for hith succesfully before? Cheers

Ive never useed this product, sorry . But for HITH, Metronidazole along with pristine water condition is usually helpful.
If the hole is too big and white from fungus , cleaning it gently , occasionally with H202 or PP-KmNo4 on a cotton ear-bud is helpful too .

Good luck Mel .