Rapid necrosis sps

[António Seita]

Good Morning

I haven't been able to stain acroporas for a few months. I buy the frag`s that are beautiful at the time but the other day they are completely white and without fabrics, I cannot understand what is wrong and I am getting a little demoralized with the situation.
However, the soft corals and some sps that I have had for a long time are fine.
I will try to explain my aquarium succinctly:
Aquarium with 1600 lt
Bubble king skimmer 300
GNC lighting
Maxpect circulation
I've been doing zeovit since January this year, after an invasion of cyanos.
At this moment without almost cyanos.
Parameters
KH 7.5 KHDirector
Calcio 420 + -
Magnesio 1300 + -
Po4 0.10 hanna
No3 <2
Thanks for the help
Best regards,

António Seita

[G.Alexander]

Hello Antonio and welcome to ZeoVit.com !

Can you please post some more information about your system:

https://forum.zeovit.com/forum/gener...bout-your-tank

A full tank and a sump picture would be helpful additional.

As SPS corals die that quick I would expect there is something more than just a issue with the dosage or the water parameters.

G.Alexander

[António Seita]

1. Gross water volume of your complete system (incl. sump etc.) - US gallons / UK gallons / liter
1800 LT
2. Net water volume (incl. sump etc.) - US gallons / UK gallons / liter
1500 lt
3. Are you using a CaCO2 reactor or other technique
NO
4. Are you using a PO4 reactor (how long, how long ago, etc.) - NO
5. Are you using Ozone - NO
6. Are you using UV - NO
7. What skimmer are you using (type, rated water volume) Bubble King 300 Internal
8. What are your actual PO4 and NO3 levels – 0,10 / 5
9. What are your actual Ca, Alk and Mg levels 430/7,3/1300
10. What filtration method do you use (refugium, DSB, Miracle Mud, etc.) None
11. Type of light (Watt, color temp, how old, etc.) Led GNC
12. What corals do you keep
13. Tissue color (light or dark)
14. How long has the tank been running 10 Years
15. Why do you want to use the ZEOvit system More stability and Mantein sps corals
16. Any supplemental dosing (type, amount, why, etc.) No
17. Live rock (how much, how old, etc.) +-40 kg 10 Years
18. Any present problems Cyano
19. Problem description (tissue loss tips, tissue loss base, diatom bloom, algae, etc.) Loss tissue in new corals
20. What test kit do you use (how old, recently switched, etc.) Hanna
21. Present dosing, amounts and intervals (ZEOvit, ZEObak, ZEOfood, ZEOstart, ZEOspur2, etc.)
Zeovit 3 Lt / Zeoback 2 times week 15 drops/zeofood 3 times 15 drops/cyanoclen 2 times 30 drops/ zeozym 1 time 2 dose spoons / Coral snow 2 times 15ml / Sponge power 2 times 15 drops
22. Other water parameters and water stability (salinity, temp, etc.) 1026 / 34ppm 25ºc
23. Which salt brand do you use Aquaforest/Redsea

[António Seita]

[António Seita]

This is the system.
thankyou
best regards

[G.Alexander]

Thank you for the additional information, but I can not see anything problematic. Do you have SPS corals which are dong well and growing already ? Are just new added SPS corals affected, if yes does they loose tissue starting from the tips or at the base ?

G.Alexander

[António Seita]

Good Morning Alexander

Those who have been here the longest have a slow growth.
The ones I put in again are that they whiten from one day to the next, as you can see in one of the photos usually from the bottom up, but at other times they whiten evenly.
I also forgot to mention that I am doing triton balling and zeostar3 3ml a day.
I must continue with the same doses of zeovit products.
Thank you very much

Greetings,

[G.Alexander]

Hello Antionio,

basically your dosing regimen is fine and should not be the cause of the issues.

In one picture there are some kind of a film on the sand, are those cyanos ?

Can you please also tell more about your lighting setup, the tank looks relative dark from the pictures but this is also not the problem for the issues with new SPS corals.

Do you have a change to do a ICP test of your water parameters ?

Additional please also tell us something more about your RO unit, do you use a purest water resin as the last stage of it ? Please also check the water with a accurate TDS meter.

G.Alexander

[António Seita]

Hello Alexander
yes, it is cyano, I had a major invasion before starting the zeovit system, but it is already decreasing.
The lighting consists of 4 gnc projectors plus 6 blue ray from the tropical marine center.
It looks dark because the photo was taken from the phone and far away.
I have no purest resine in the last stage of ro.

António Seita

[G.Alexander]

Hello Antinio, do you have a chance to do a ICP test of the tank water and a check with a TDS meter of the RO water you use ?

G.Alexander

[António Seita]

Hello Alexander

For the ICP text I will try to send it to Germany.
As for osmosis I will have to buy a new one that has tds meter.

Thanks

António Seita

[G.Alexander]

I expect there is any kind of a “bigger” impact to your system, as corals do respond negative that quick. This can be any kind of leaching toxins or heavy metals from the equipment, the RO water or from the rocks / sand. A ICP Test might be helpful but there are also several harmful substances which can not be detected with it like softeners of plastic etc.

Running a purest water filter resin as the last stage of the RO unit is something I would really recommend, in conjunction with a accurate TDS meter you can easy see when the resin needs to be replace.

Not sure if one or both will change much but I would both ruled out first.

G.Alexander

[António Seita]

Thanks

I have already ordered a resin cartridge and a TDS meter, it may solve this problem, I will also take the opportunity to make a bigger water change.
Thanks

[António Seita]

Good Morning
I already received the resin and tds. Without the resin, the output gives 5/6 ppm and with the cartridge 0 ppm.
I hope this is the solution to the problems I have had with algae and cyanos.
Thanks

António Seita