Frogspawn problems

[geogolfer]

I've had our frogspawn for over 1 year and has always looked awesome. I started adding a pH buffer that said it would not overdose. I tested the pH and it tested just fine. For some reason the frogspawn's heads shrank up, the star polyps aren't out like they are normally. I did an almost 30% water change and the frogspawn looks the same, in poor shape. I'm sure it's a clue but to what I am asking, but a red fromia star fish I have not all of the time but since this all started 1 or 2 legs at the ends will turn up just a little. But they won't stay that way for too long. Does anyone have any clues to what might be going on and any advice.

Thanks
Aaron

[geogolfer]

My hydrometer was substandard and was giving me a false reading. Upon figuring that out I bought a new one and the salinity was WAY too high. Changed the water until correct SG was established.