LPS sulking after bulb change

[Elliott89]

Hiya

I changed my MH bulb 3 days ago from a 150 xm 20k to a 150 Radium 20k and since then my LPS have been sulking and some of them have been showing white filaments...should i change the bulb back over the xm or will they get used to radium given time

Many thanks

Elliott

[kev apsley]

maybe try shielding your lights or shortening your light cycle..the Radium's higher par is affecting your corals so you need to protect them from bleaching

[jasper24]

My LPS hated 20K Radiums for some reason. Best bulb I have found is Phoenix 14K.