Fin Splitting?

[jimboberdy]

hi,

i got two guppies yesterday and it seems that their fins have split significantly within the first 24 hrs. my water parameters are all good ammonia 0, nitrite 0 and nitrate 30ppm. pH 7.4.

i had a fungus it there and treated it successfully (i think) 3 days ago.

could it be fin nipping. it looks pretty bad as though it could be both.

28l tank.

2 platys
2 guppies
2 yoyo loach
1 shrimp

any suggestions whould be welcome,

jimmy