I have been in this hobby for a while and have learned a lot and I will always have more to learn. I read a lot posts where people say that stability, especially ALK, is very important. You hear the phrases "ALK swings" and "ALK spikes" used frequently but, doesn't ALK always go down unless you are adding ALK to the tank? I'm pretty sure that ALK doesn't "swing" like pH does due to biological proceses and CO2 levels in the tank. Please correct me if I am wrong. I can take it and I am eager to learn the facts. I kind of interpret "ALK spikes" as meaning that the user has added too muck ALK supplement at one time. The only other ways I could see ALk rising is from changing water with new water that has a higher ALK content or using some sort of Man Made rock that used cement or some other similar type of material without "curing" it.
What do you guys think?
What do you guys think?