June 25, 2003
This evening I did the first water change I've done on this tank in over 8 months. Nothing was showing any signs of stress, and the water parameters were all in check, but I wanted to give it a refresh to be safe. I'll keep an eye on any changes that come from the water change.
This is a good example of how contained ecosystems can reach an equalibrium when few changes or additions are made. If I recall, the last time I did a water change the system was at an equalibrium for quite some time beforehand.
I've also switched over to Instant Ocean to give it a try. Nothing closed up during the 1 gallon change, and everything is still open after turning the pump back on. So far so good.