Nope not velvet, familiar with it... the tetra stuff clears that right up...
Followed the link, found 2 possibilites
Costia and Chilodonella , both of them requires Acriflavine (trypaflavine), which can sterilise fish... does anybody know under which brand names these are sold...
Cape Town, South Africa
25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.
On various pieces of furniture, 6 cats!