Originally Posted by Edmonton Eskimo
I don't see anything wrong with higher ca
if your tank uses it. I have used oceanic salt since I started in this hobby and I have seen nothing but growth from all my tank inhabitants. I have 3 shrimp and all of them are growing nicely. I have tested fresh mixed water and the ca
is between 450 and 500 and the alk
is about 2.6 meq/l.
Gotta disagree with that. Having high numbers just because the elements will "get used eventually" is no different than artificially boosting alk
to force coral growth. The end result is still the same, increased depositing of CaCO3
as the scleractinians tries to gain equilibrium between the Ca
in it's cells to that of the Ca
in the surrounding water. To do so it must increase the rate in which carbonate and Ca
deposit to the skelaton. In doing so the coral must also increase the rate of tissue growth which typically results in a very stressed and potentially unhealthy coral. Often being very brittle, malformed/reedy looking and easily sesceptible to problems.
From what I understand when you raise your alk your ca will tend to come down a bit.
Depends on the product your using and what the levels of Mg
are at the time. More often than not Ca
will not decrease that much and simpley show a lower number due to abiotic precip of CaCO3
more than anything else. With the additions of buffers you are not seeing the whole effect as it is actually lowering both. Easily encrusted equipment (usually generating heat) is often a sign of this.
I tested my ca 2 days after water change and it is down a bit. I use oceanic and am very pleased with it.
If you have that kind of a demand then that is a risk you choose to take. I do not think advising someone who has a completely different tank set up/stock type may be in their best interest?