I just use regular tap water. The lfs tested my tap water and said it was really good almost ro. from what i can tell the prism is doing a good job, i have to empty the cup almost every week of thick green scum! and i clean the body alot too. i recently took out all my crushed coral and added...
I have had a 55g tank for about 4 months everything has been going great no deaths or anything untill 3 days ago. i had a little clown and a royal gramma. one morning i woke up and the clown was dead so i tested 1.024 salinity 0 nitrates 0 nitrites ph 8.3 80 degrees. then the next day the...