Tropical Fish Diseases
Hi - I did a large water change today (accidentally). I was going to do a 30% water change, as I do weekly, but I took my eye off the siphon and the bucket overflowed, and I ended up doing a 75% water change. The tank is a 20 gallon high, with Ammonia 0, Nitrite 0 and Nitrates 15. Ph is 7.6...