Thanks for the explination it at last makes more sense my usual ph readings are 7.6 with high ph of 7.4 think the last readings were high because i'd done a water change about 3 hours before, which i'm thinking means the actual ph is around 7.5! please correct me if i'm wrong, i've only used the test strips before and decided i needed to get a proper test kit as its a much bigger tank than my old one, which i have started to cycle so i can move some of the gouramis in there, i'm not sure which ones to move,although i was thinking of leaving the pearls as they are and move all the dwarf gouramis which would be 1 male and 3 females do you think this would work better? also what would be the maximum stocking level for a 30g (125 litre) tank as i've read a lot of different things on how to work out the stocking level which don't seem to be very accurate, as i don't want to over stock my tanks in the future.
many thanks for the advice