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I had a lot of Black hair alge for a whilecould also cause browning of sps
I took that one the other day. I can try again when I get home.In your blurry, blue-light pic, it looks like the ends of a piece of SPS is where you see "white". When SPS grows, the ends are usually much lighter, sometimes white. Are you sure that your SPS isn't just growing instead of dying or bleaching?
Can you get a better pic with more white light?
Is the high phosphates Why this is happening?
Ok here are better picsIn your blurry, blue-light pic, it looks like the ends of a piece of SPS is where you see "white". When SPS grows, the ends are usually much lighter, sometimes white. Are you sure that your SPS isn't just growing instead of dying or bleaching?
Can you get a better pic with more white light?
Like I said before, it’s most likely your phosphates. To a ‘T’ this happened to me. I know some people say phosphates won’t bleach coral but here is some proof for you. Just like your lawn, too many nutrients and it can burn.
I’ll show you the results of the phosphates and what they looked like before they went to 0.68 for me.
High Phosophates destroyed my corals:
Before the High phosophates:
My tank has turned the corner and is on the mend, but it’s painful to see what I had and what I have now.
Excessive phosphates inhibit the uptake of nutrients and calcium to form the skeleton. No nutrients= poor health. As the skeleton breaks down, the flesh on top dies, allowing algae to grow on the skeleton, out competing the flesh for space and light. I watched it happen first hand. It’s a LONG process. Took a few weeks to happen, but it did. It’s not like RTN. It’s like SSSSSSSSTN. Eventually the algae takes over and the coral dies. I lost 2 of my 30 or so corals. Some didn’t mind at all. Some faded more quickly. It seemed my plating and encrusting corals faired the worst.How could high phosphates cause zooxanthellae to die? Do you actually see white looking polyps and not skeleton? In my experience, I find people struggle with tissue necrosis more than true bleaching (at least when working at LFS).
How is the flow in the tank?
Flow in the tank is good. The corals turning white are only my encrusters. Softies LPS and even other SPS like my birds nest are just fine.How could high phosphates cause zooxanthellae to die (not being rhetorical, I am genuinely wondering how that could kill zooxanthellae)? Do you actually see white looking polyps and not skeleton? In my experience, I find people struggle with tissue necrosis more than true bleaching (at least when working at LFS).
How is the flow in the tank?
To a ‘T’ this happened to me. I know some people say phosphates won’t bleach coral but here is some proof for you.
No, it works in a high flow area in a sock or pantyhose. Works over a few days in emergencies, but strips the phosphates to 0.00GFO needs to be put in a reactor right?
GFO is fine in a media bag or old panty hose placed in a strong flow area. Used properly, i.e. at the right amount, it will not strip all phosphate to 0.0. Many reefers use it regularly as part of management system without stripping all phosphate. I have run it continuously on tanks before and maintained any PO4 level I choose by adjusting the amount used. It's a tool, nothing more.No, it works in a high flow area in a sock or pantyhose. Works over a few days in emergencies, but strips the phosphates to 0.00