The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RESPIRATION OF PUFFER FISH 461 The hydrogen ion concentration of the water was measured by colorimetric means. Consequently the analyses do not represent
Day 13 of my tank cycle. Ammonia 4ppm, Nitrites 2 ppm, Nitrates 20 ppm, PH 6.4. How are things looking? Since adding ammonia I have noticed a build up white stuff on