Hey all ...

I'm going to be replacing my 250watt MH bulbs next week for the first time.
I've been using the 12K Sunburst for over a year now and am going to try the 20K CoralVue bulbs ...

Considering the fact that my old bulbs have probably lost most of thier intensity ... what is the best way to acclimate the tank to the new bulbs ?

samiam