Sparse sps success in a mixed tank.

I've put too much carbon once and got rtn on my acropora the next day. So I think too much carbon is you problem. You are stripping nutrient too fast.
 
It's only 3 months old just got to full power today. Been acclimatizing for 6 weeks. But you could be right. Would low light cause tissue loss? I would just expect darker sps not tissue loss.

stripping tissue from the bottom is the coral regulating it's bodymass and shedding tissue in ineffecient places, generally these will be low-flow and low-light areas. A coral does this in low light and ultra low nutrient when no food is present.

I wouldn't remove the reactor, just remove 1/4 to half of what's in it and reduce the flowthrough somewhat if possible and look into biopellets or some form of nutrient control using carbon dosing to replace GFO. I've also had extremely bad experiences with too much GFO in a tank in the past, but carbon is still useful in the right doses.

I noticed you asked a similar question earlier, that coral generally does the above frequently as it grows and the canopy begins to shade the base.
 
Thank you for the reply. I added an additional power head and moved it half way up the tank. Gonna buy another stick today. Something hardy and see how it reacts.
 
While SPS are a lot of fun to grow, your tank looks very nice. Definitely a lot of actinodiscus mushrooms in there but if you had to stick to softies and LPS for the rest of your tank's days I don't think you'd be doing yourself a disservice.
 
IMHO, a cup of each carbon and gfo is a lot for a 55. I run 1/2 cup carbon and 200 grams (way less than a cup) gfo on my 100g.

You might try a frag of Montipora digitata. One of the hardiest sps and available in several colors.

+1. Definitely WAY too much. I have a 65g. I run @ 1/2 cup of carbon, and only 1/4 cup of GFO.
 
Really eh. Wow. Guess I've been stripping the water.

This+1 I don't know how many tanks I have seen with the same problem. I don't know who is recommending this but if you have a normal bio load and you don't feed a lot then you don't need to run gfo or carbon. Only run it if there is a problem.
 
What are you using to test the phosphate with? And your other parameters. If you have .02 then your not really stripping the water right? If you were stripping the water I would think your other corals would show signs as well. To include things being pale.
How much do you feed and how many fish?
I have only had problems with gfo or carbon after adding too much fresh media at once. If you have been running it like that for a long period of time I would be hesitant to say your water is being stripped of all nutrients. Although cutting back wouldnt hurt as an experiment of course.
Why did you start weekly waterchanges?
I would guess light and flow to be a factor as to why acros were not living.
Where were you getting your corals from that died? What were they? Wild, Mari, aquaculture?
 
I still think OP should try an sps frag toward the top centre of the tank to see if it's a lighting issue, the pocillopora and mushrooms wouldn't do well in a tank that's been stripped of nutrients, it's very difficult to do so without a strong carbon dosing regime
 
Reactor off for the last 4 days. I have to say things look less stressed. Going to remove it for now and do smaller weekly water changes for a while. See if that improves things.

I've lost a types of corals from wild to Mari to aquaculture. I seem to have success with corals that come from someone else's established tank not a store.

I think the few changes I just made may yield results. I'll update with pics as the weeks go along
 
Been showing great growth on some frags. But is is possible to have new growth and stn on the same coral?

New growth on tips
ImageUploadedByTapatalk1424177449.542579.jpg

Stn?
ImageUploadedByTapatalk1424177491.628744.jpg

Frag it?
 
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