I have to agree with RR here. I think what he is trying to say is although it is more difficult to maintain constant parameters in a closed environment with a strict schedule of water changes with a high quality salt it should remain stable. Say weely water changes as opposed to monthly like many people and your params should remain stable. If there is a problem (i.e. non-quality salt, heavy calcium load, etc.) then you can look into help. With no problem, there is no fix. I personally use reef builder and think it's valuable but I don't think it is the key to my tanks success either. If you need to dose anything look for more complete quality products as dosing for one specific thing can reap terror on a tanks total params. Always test and using the exaple you used: If calcium is a bit low but alk
is fine, try a water change first. If help is needed look for something like B-ionic which is a two part supplement to keep alk
stable as calcium rises as opposed to tossing in just a calcium supplent tossing your alk
levels off and possible precipitating in your tank.
, all of this just to say stay dilligent on your water changes and use a high quality salt and all should be well!