I once trying to save cost, change water with NSW, then algae bloom!!
Some expert told me that either u use NSW all the way all salt mix, but dont mis both of them, no good for corals. Is this true?
Cheers up!!
Look at the bright side, when tank crash, time to rescape and change all new fishes and corals!!
My tanks crashed twice for the past 5 years too!! Still reefing now!!