Hi

Another cory fan on board! But need help with the problem below.

I noticed some white tiny worm like thing attached to the fins, tails, and mouth of some of the corys. I observed closely and I think the worms moved while being attached to the corys!!!!! I suspect it is fin glukes cause the corys are rubbing against the gravel, on the plants and the driftwood. some of them have also become less active.

I added some yellow powder but didn't work. As I was afraid that it might have spread to the whole tanks, 2 days ago, I changed 1/2 tank of water and added Sera Mycopur and Ectopur to the whole tank for treatment, and supposed to treat for 3 consecutive days using the Mycopur. I've already added the full dosage for Mycopur for 2 days. But last nite, I noticed the worms are still there. Tonight is the last day of treatment already. If they don't heal then I'm really at a lost.

Some questions :
1. Did I identify the disease correctly?
2. Are those Sera treatment really useful?
3. How did the worms come about?


Hope to get some advice soon before the worms really terrorise my tank.