And after posting, I see some good advice from Dan too :wink:

Best if you up one @ a time so you can monitor it alone and it's affects ...

How? Clean water? :)

Typical water isn't going to have levels much higher than you have now, and you can then fine tune.

Before you do anything, is coral OK? i recently nuked my tank because my alk test said 6dkh and calcium said 420. Be VERY careful with your tests, i took an API and a salifert beside each other with one saying 6-7dkh, the other 17dkh.

Basically what i'm saying is before you do ANY corrective actions, first make sure you actually need the correction, and if you do, get a second opinion. I lost $1500 worth of SPS because i cheaped out on a test kit then trusted it, don't do the same :P.

It is a new bag of salt. That makes me a bit nervous, as it could be quite different from the previous bucket.

My LPS look wonderful. My SPS aren't perfect, but okay. A couple are a little browned, but growing. I can't tell by looking at anything that the calcium is so out.

It is the API test kit that is being used for Alk. I have the Seachem test for Alk, but I haven't used it yet. I will test side-by-side tomorrow, before I do anything.

Honestly, it's just salt. As long as it's the same brand as what you've been using, you're good. Mix it up for an hour, if it mixes clear, that's my sign that salt is good.
If you're still concerned, do a quick alk test. You don't need to knead the bag, or flip it, or mix for 24 hours. Mix it in RO, let it go clear and hit a close temp to what you need, and change water. It's just a water change.

If you did 5 gallon changes separately you'd be getting diminished returns over just doing 50%.

Although I agree with most of everything said, I find that my salt does not mix to the proper Sg in an hour or so
I find it takes overnight for the Sg to stabilize, but that could be just me

It's also been pointed out to me that my testing of Ca over 500 from a bucket is not right, and I agree it was way too hi, which is why I started the thread I did

I tried my best to prove it wrong, but it came out that hi after multiple tests

I would like to think that the bucket I was just finishing, and the Elos test kit I was using at the time, were not getting along ..

But, I still get readings of 460 or higher with a brand new bucket of IO and a brand new Elos kit

Doing a 50% WC will not harm anything, as long as the new water is good :mrgreen:

Ya, gonna have to go with "it's just you". I mix mine up an hour ahead of time and it's fine. Once the salt is dissolved to the point that the water is clear, it isn't going to get more dissolved. I do have a large pump mixing it, but I do 50g at a time. In emergencies, I've mixed 5g buckets of new water in 10 minutes. While there's nothing at all wrong waiting 24 hours, it just isn't necessary.

Probably has something to do with a maxijet 600 in a 20g
I'd love to get NSW ready in an hour or 2, but I've found refractometer readings change as the day/night goes on, so I just wait 'till the next day

Back to Shelley's original question, shall we ???