Whats wrong with my frogspawn?!

[Bigcorallox]

 

[vetteguy53081]

hammers are intolerant to major swings in water quality, and is sensitive to almost any level of copper in the water. Calcium and alkalinity are two very important water parameters that will affect the growth of your coral. This coral will start to die off if the calcium levels are too low. A calcium level of about 420 ppm is just right. Apply moderate light and water flow, temps of 77-79, salinity at 1.025, PH of 8.2 and nitrate < .4

 

[PeterB113]

Looks like someone threw a penny in your tank for sure.