I have a red sea max(34 gallon capacity). I started cycling 6 weeks ago. I initially added 25 pounds of fiji uncured/precured premium live rock. After 1 week I added 5 pounds of a fully cured live rock from a lfs ( it has lots of red/purple coraline). I check my ammonia, nitrite , and nitrates daily and I have never had an ammonia spike, My ammonia has been between .025 and .50 for the whole 6 weeks.
. My ph is always around .021-.0230, and my alk is aroung 0.4 . I keep the temp between 79 - 80.5 F. I get my saltwater and RO water from a LFS. Since my ammonia has never been very high about 2 weeks ago I added a yellow tail damsel. About 10 days ago I started getting getting a huge brown algae/diatom outbreak... still no ammonia spike. Both the ammonia and nitrites are low but I never get them to zero. What am I doing wrong???