Markpeggie, your kH may also be rather high and that is going to cause the pH to creep back up and the peat isn't filtering enough out. I just tested, my tap is 4kH, my peat water was 0kH, so I assume mine won't drift much upwards.
20g platy, , 2 x 10g shrimp, 3 x 20g shrimp, 7.5g shrimp and 1 great dane/mastiff puppy.
Sump Pimp #2
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