I've had my 2.5g minibow with filter for 18 days with 1 betta named "Finn".
I have plastic plants.
I change 50% water 2 times per week and gravel suction 1 time per week.
I feed Omega One pellets - 4 per day, fast on Sunday
I have API liquid test kit, and use PRIME.
readings have been:
pH usually 7.4
tap water has pH of 7.2, todays tank reading was pH of 7.8(tested 2times)
changed water 50% today
ammonia is now 0.25
pH is 7.4 after water change
question: is this too much of a fluctuation in pH??
water temp is between 79/80 F