I've had my baby caribas for about a week now and when I tested the water today the parameters I got were ammonia .25ppm, nitrites .5ppm, and nitrates 20 ppm so I decided to do my first water change. I vacuumed the gravel and cleaned the filter & powerhead with the old tank water then I refilled it also using 6 capfuls of PRIME detoxifier. It's been about 2 hours now since I've done the water change and when I retested the water I got the same parameters as above stated. Now should I wait and test the water again later or should I do another water change? Help me out fellas I don't want my p's getting all sick and sh*t. Thanks!!! Oh yeah and I did about 25-35% water change.