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RT's 120G build (1 Viewer)

Well, after experimenting with LEDs, I'm officially put off. The Radions thoroughly fried my acropora and montipora. I started at 30% and over the course of a month and a half slowly bumped the lighting up to 50%. After a few days, I just decided that the burnt tips on my acropora, and bleaching montiporas would look better under t5s again. And just for clarification my alk was a consistent 9dkh, and calcium a consistent 420.

On a happier note...here are some pics of my new Cirrhilabrus Pylie pair.

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I've lost all the SPS with a few exceptions in my tank and it looks like some of the other corals are on there way out too :( A couple of people and I think I may have had this crash because my Radions stressed the corals out to the point of a disease outbreak. The disease has to be bacterial because I could not find any red bugs/aefw/etc.


Stressful.


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Sorry to read this Ryan.
I know from own experience LED's can be very tricky and many times you even don't notice how much light they put out until it is to late.
Hope things will get better again soon
 
The par distribution graphs that Sanjay has done really shows how little the light spreads and how challenging it could be to provide the correct light levels to all corals throughout the tank without blasting the corals directly under it. Hope it turns around for you.
 
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Well, I did a necropsy on a Acropora valida, as it seems these are one of the more susceptible aroporas to disease. I found a small piece with tissue, fragged it off, and put it under the scope...

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Does anyone have any ideas as to what these are? It sure doesn't look like AEFW to me, but I could be wrong. I also did not see any eggs laid on the piece.

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Definitely not AEFW. They have brown eggs and you can see them just below the recession line with your naked eye.


Good reference pics. http://www.melevsreef.com/aefw.html

Hard to tell from your pic, but looks like some kind of eggs.

What happened to your corals? Bleaching? STN? RTN?
 
sameyer said:
What happened to your corals? Bleaching? STN? RTN?
Click to expand...

I had switched to Radion LEDs, and noticed the corals going downhill. I changed them back to t5s thinking it was the lights causing the STNing, but it is still happening. I've lost most/all of my SPS.
 
Are you thinking these are some sort of parasite?

Do you still think it was just the lighting?
 
What test kits are you using? (specifically alk)

I had a bad Salifert kit a few years back that was WAY off and led to overdosing my alk up to 13 dKH.
 
Or a consistent low Alk, I came back from a business trip to find the alk had dropped to 8dkh from a normal 11dkh; main reason for the drop, likely was the addition of new corals without a mtaching increase in supplements
 
sameyer said:
What test kits are you using? (specifically alk)

I had a bad Salifert kit a few years back that was WAY off and led to overdosing my alk up to 13 dKH.
Click to expand...


I've been testing with two kits. A Hanna checker, and a salifert kit to reference it against.
 
Taklu said:
Or a consistent low Alk, I came back from a business trip to find the alk had dropped to 8dkh from a normal 11dkh; main reason for the drop, likely was the addition of new corals without a mtaching increase in supplements
Click to expand...

I try and keep my alk around 8.5. All my test results showed a minimal swing. On top of that I haven't added any new corals since a month before the last swap.

I am at a loss here, and I have no idea what has happened to the system.

I should also add that my pH has only fluctuated a little bit.

I appreciate all the help guys.
 
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