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Interesting..... Im starting to think I may have my tank too clean.
What would an acceptable amount of phosphate and nitrates be for an all sps tank?
My tank runs .02 or lower. Usually at 0. You think it should have a little bit? My tank is fairly new and all the sps frags i have in there have not been in very long, but I can tell most are coloring up. A few of them did bleach out a little, can they lose color from too much gfo or too little phosphate/ taking too many nutrients out?As far as Phosphates goes ive read and seen that you should try and stay under .03 for best growth and color. Every test kit including Hanna has some variance in the test results so you might consider testing a few times if the measurement seems high. Don't make any drastic changes if you find the PO4 is higher than you want as a phosphate swing can shock your sps.
Andy I just re-read your whole thread.
Once you have carefully checked for pests and have confirmed that it is not pests (eg Red bugs or AEFW's), I would still say that your corals are lacking food. I am a member on at least 5 SPS forums and see similar threads coming up frequently.
What is your phosphate level currently at?
Can you tell me a little about the rocks in your tank? Eg did you have the same rocks in the previous tank? Other than the change of lights from the and obviously change of tank, what else has changed from the previous setup?
Compare your old and new setup for me please:
1. Lights-OLD= ATI T5, NEW=250w Radium
2. Skimmer- OLD=??????, NEW=Reef Octopus XP1000SSS
3. Rocks? etc
4. Sand? etc
5. Mechanical Filtration?
6. Chemical Filtration?
7. Fish stocking?
8. Feeding?
I would actually keep up with regular water changes but increase feeding. The trick is LOTS of FOOD IN + LOTS OF WASTE OUT.
I think your tank is too clean in terms of particulate food. Maybe good liverock with lots of microfauna is worth the hassle with aiptasia etc.
All those tiny creatures are food for your corals. Honestly over the past couple of years I have done a complete u-turn when it comes to corals (particularly SPS). I used to think an ultra clean tank. Now I see more and more SPS reefkeepers especially, saying that we need a bit of phosphate. I think additionally, we need more than that. We need a tank full of microlife, those things will feed the corals as well.
Have a read of this:Small polyps do capture zooplankton
I found that site only a few days ago. I began searching on the subject matter because I wanted to confirm my idea about coral health and nutrition.
My last setup consisted of 100% Marco rocks. New setup has at least 50% good quality liverock so that I have sufficient microlife in the tank.
Anyway, I will stop my rant for now.
Have you tested the parameters of your new water that is made up from the ESV Seawater system? I had one batch of ESV Seawater that I was giving me very inconsistent dKH readings.
I can just see someone mashing up bananas into a reactorHave you checked your potassium? I've read a few threads on the zeovit message board that attributed lack of color to a potassium deficiency that was resolved when they brought their potassium up to appropriate levels. Something else to check for...Good luck and hope you figure out your issue.

I can just see someone mashing up bananas into a reactor![]()

Do you mean Interceptor in the display?
And the Bayer dip...does that kill the eggs?

