I am intending to setup a mini refugium in my sump.
Whats next?
1) Need to buy sand or just cheato?
2) Will timer LED light to photoperiod for how long?
3) how should be the water movement from sump to refugium to sump?
I saw this urchin suddenly appeared after setup my tank for more than a year!
Friendly or Foe?
It is actually black in color but i used my iphone to take and it becomes whats shown...
Today I just saw an tiny orange crabby hiding inside my SPS.No wonder I have been seeing that SPS fading in colors till to retain area become white.Will crabby eat sps?Orangy crabby reef safe?
I will try to take a photo.