I bought some beautiful acan frags about two weeks ago. When I first dropped them into my tank they opened up perfectly. But since yesterday they are now fairly unhappy. They do not inflate when the lights come on but when the lights go off they inflate to normal size. I did my normal 15 gallon water change on Wednesday (I have a 58 gallon oceanic with a 20 gallon sump) and this has been happening since than. My water paremeters are as follows: ph 8.3, ammonia .25 ( I think something is wrong with my test kit everything else is perfect) nitrite 0, nitrate 0, calcium 440, magnesium 1400, alkalinity 9 and salinity 1.024 Could it be something with my lights or could it be that they are in somewhat of a healing mode since they were cut on site when I bought them.
Jon
Jon