dzhuo
Active member
dzhuo,
You said that feeding your tank more helped the problem? Makes me wonder if stopping the AA's was a good idea.
Yup. As I mentioned earlier:
- I stopped GFO and ROX .8 (carbon).
- Start to feed more.
These 2 did probably 90% to 95% of the damage. Once I took GFO and ROX .8 offline and feed more, almost immediately, I saw an improvement on pod population. Prior to that when my tank was at 6 months old, I hardly see any pods at all even at night. That's highly unusual given that my tank is 150g with a 40g fuge; you just don't see any pods in such a large tank for over 6 months. The only thing that it seems to grow is this cyano. This leads me to believe my tank is too sterile. Once feeding is up, the pods returned. Soon enough, coraline and tiny bits of micro algae shows up and the cyano decline rapidly. The critters that I added also prey on this cyano but they were added later; they did help. This probably took care 95% of my problem. The last punch was lights out and it get rid of it 100%. An extremely small amount of this cyano has returned since but I fully believe (as my tank continue to mature) they won't have a chance to last long.
Sorry I have no idea AA would make any difference. I have heard mix result. If this were my tank, I would just go back to basic and forget about AA, Zeovit or carbon dosing. Let the tank mature the way we used to keep them before these more advanced methods become popular. If down the road, you have nutrient issue and feel the need to go back to them then go back.
After all, we have been keeping very nice SPS tanks for decades before we even know about carbon or AA dosing.