Who Gives A Fish Forums

8.5 dKH is solid, but SPS can be picky. What's your magnesium at? I've found keeping it around 1350-1400 helps. Also, how old are your bulbs? Radions lose intensity after 9-12 months. My Acros took off when I bumped alk to 9 and swapped bulbs.


Yep, mag's key. I run mine at 1380, alk at 9.2 ...