Hello Uncle Yogibear,

Still in the environment field but concentrate more on consulting work rather than project management. Now have to sell my advise kakaka.

Hmmm vorex,

Could be columnaris but normally columnaris will infect the whole tank rather than a particular fish. Quite devastating if they really strike. Not really recommend antibiotics because future generation will not be able to synthesize the correct immunisation against them and they only will work for the first few times........