hi all pleased to meet you, setup is roma 90 with fluval u2 filter .heater and pump with airstone on, gravel at bottom and 3 live plants ,2 wood,i had 5 neons and 2 male guppys and 4 females, 2 female guppys have died in 7 days i had tank setup but do have 9 fry in birth net doing well, why have the 2 died. first one was just dead with no sign of disease, 2nd today white specks but have treated water maybe a little late,! have done ph test and is dark blue. any advice what to do, is it because its a new tank .and not cycled, im using stress and water conditioners , did 20% water change yesterday, also guppys seem always 9 times out of ten to be right at top thoughts please