Reef is going awkward

sebnuage

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Hello everyone,
I have been battling some issues for a while ... Well, it seems like I can't work my way through so I'm asking for help.
I will try and give as much details as I think are relevant.

I have a tall tank 18X18 inchs square by 30 inches tall.
The tank is 1year old but All the life rock and most corals were in the evo for 3 years before I switched.
Have a settling tank below wich is my old evo 13.5g
I do a 10% water change weekly.

parameters I try to keep.
Calcium , (around 500) (doser + test weekly)
Magnesium (previsously around 1200, nowadays 1600) (doser + test weekly)
I also dose Iodine (doser + test weekly)
KH My goal is 10 but I had problems. (right now 9.0)
Phosphate (withing nothing to a very small) (tested weekly)
Nitrates (nothing to a very small amount) (tested weekly)
Salinity 1.025 (osmolator + test weekly) ( I use commercial reversed osmosis water)
Temp 78 F (around 25 C)
I have in there some activated charcoal once in a while.
I feed corals 2-3 times a week with reef roids.
Feed fish once every day (used to do it twice a day but reduced it because it was too much in my opinion)
I dose some phytoplankton once in a while

I have had some battles I think I recovered from, here are some ...

a year ago I battled (successfully red flat worm INVASION) ...

Algea problems (Green hair algae + bryopsis)
-Tried manual removal
-Tried a treatment. ruby reef rally pro.
-Added a tomini tang (did not help much)
I figured I had a way too small protein skimmer. It was the stock fluvall evo 13.5 gallons skimmer.
changed it for a Seapora Storm hang-on protein skimmer
I alway tried to maintain the tank with the smallest filtration possible and to be honest it always worked out.

Greying montipora
This guy is like a sensor for me.
When the tank is not right , it shows right away (right now he's in trouble)
I tried raising the KH I had 8 DKH on my red sea test kit. Raised it to 9 over some weeks.
I started to see crazy things hapenning... Mushrooms elongated, Very fast sps growing, fish disapearing + fast breathing, shrimps disapearing....
Finally found out the problem was the DKH, I suspected the red sea test kit.
Bought a salifer test kit to check... salifer shows 15dkh + ...........
big water change drop level to 11 over 2 days ... no more loss ...

I still have a tomini tang with sores on the back of the eyes + the pressure line infect (he was like that when I bought him)
It went worse with the KH elevated but he is back sme as when I bought him

Right now , the DKH is around 9 wich is +0.5 the level found in the salt I buy.


So lately many things went south and i'm still having the montipora greying out problem...
I lost a couple corals to FTS and STN , I think it's over now but I suspect if I don't play it well I might lose some sps very soon.

All my LPS look fine, (acan is not so nice but babys are budding anyway)
2 long polyps torchs are not extended ( I tried reducing water flow ) (recessing slowly)
1 small polyps torch is now midsized ....
This is the reason I continu adding some charcoal, I suspect maybe a war between Soft and hard corals ?????

Did I say I have no more shrimp in my aquarium ?
Even my pistol shrimp wich lived in what one could call , the pits of my aquarium ... it did many tunnels and infrastructure under there...

I have a hammer head wich was ALWAY nice , it is right now half inflated like it is sick.
I have a dendronephtya wich lives great so I think there is enough food in there...
Also have a photosynthetic gorgona wich is great.
All hermit crabs and emerald crabs looks healthy.
All snails are healthy

I added some copepods after seeing the shrimps die, I suspect they were all dead too...


I'm scared taking another step and I think I really need help

Hope i'm not missing out on anything...probably am.

Sorry for the bad english

have a great day

 
Welcome to R2R!

Why the high ALK, Calcium, and Mg? Your numbers are pretty extreme and most be difficult to keep at those levels?

First question, how do you keep those levels so high? Dosing, Calcium Reactor, other?
 
Magnesium, is kept so high to help in the forever war with GHA ...
calcium is so high because I didnt lower enough the dosing after my corals stopped taking so much calcium. but it's slowly going down
from what I did hear about it, those levels should not create such problems, but i'm ready for anything.

KH is high ? Red sea's recommended DKH is 12 for a mixed reef, as soon as I lower the KH I get inhabitant stress ...
The salt gives me a reading of 8.5 DKH when I mix it with water.
I dose with seachem products
fusion 1 and 2 wich raises KH and calcium
seachem magnesium
and seachem iodine.
 
No - No relationship there.

Try feeding your fish and corals more to get phosphates and nitrates above zero. This would be my first choice in dealing with GHA. I have also found a strong UV light, Oxydator, and phytoplankton help with algae control.
 
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I dose phyto that I grew up with posphate... makes me think something must be sucking it out for it to be low , maybe lower my skimmers efficiency ...
 

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