Literally at Wits' End: Trying to Avoid a Potential Crash

Drew1600

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Quick Backstory:
I have been reefing for around a year and a half now, freshwater for many years prior. I started my marine journey, like many, in a 13.5 Fluval Evo, ran for approx 7-8 months. During that time, I added my first few coral (Clove, Toadstool, GSP, Devils Hand, various Finger Leathers, Mushrooms, normal starter coral..) After a few months of learning I switched over to Fritz's RPM Blue Box, from regular IO, due to desired parameters, mixing time, ancedotals, etc. This followed with a few more months of success and the beggings of some growth/coloration. Added a Wall Hammer, baby Torch head, three Duncans, a Bubble Coral, multiple zoa colonies during this time.

At this point I was tired of my newbie aquascape and ready for more space for my Clowns, Fiji Blue Devil Damsel, and Coral, so I decided an upgrade was in order....

Enter: Current Build & The Situation

I cycled my current 29 DT w 20 long DIY sump at the end of 2020, and it has been up and running since. Plumbed in an additional 7-8 gallon frag tub about two months ago. Everything went smooth for the first couple months, and then Bryopsis (carried from a Petco Feather Duster most likely) set in.. I was able to manage by hand for awhile and things continued to go well for the most part.

So then, about the same time I plumb in the tub, I add some SPS test pieces (Monti, Birds Nest, Psammacora, Lepto) and a few more LPS too (Blasto, Lobo, Trumpets, Favia). At this point I am doing weekly 5 gallon water changes, and attempt to clean up Bryopsis by cleaning the sandbed with a siphon and turkey baster (bad idea I now know). Long story short this basically re-jumped the Bryopsis growth and its spread like crazy.

This is when things take a turn for the worst.

After another week or so of research and manual removal, I ordered some Reef Flux and decided to raise the Magnesium level as well. I raised from 1350 to 1550 over the course of 3-4 days. This was the last time my ducan colonies opened (about a month ago). The Reef Flux arrived, so I used as directed for a week and a half, and then did a 10 gallon water change as other corals were also receding. Anyways after all this and a couple more water changes my Duncans and Zoas are all still closed, and I am worried they may not last longer. LPS and Softies have less polyp extenstion but otherwise unaffected. SPS doing great.

PARAMETERS:
Salinity = 1.026
Temp = 25.5 C
ph= 8.0
dKh = 9.5
Calcium = 450
Mag = 1470
Nitrate = 2.5-5 (less during Reef Flux treatment and less during heavy wc periods)
Phos = 0.02

Lighting and flow have not changed. I dip everything before it enters, and other than occosional aptasia have no KNOWN pests. No fish or other critters that pick at coral. LFS suggested low nutrients as the problem? I have also wondered if the most recent box of RPM Blue was a bad batch or something, because I opened it about the time this all started too... I really have no idea and am beyond frustrated at this point so any advice or anuthing at all would be greatly appreciated!! Thank you so much & happy reefing!
 
Quick Backstory:
I have been reefing for around a year and a half now, freshwater for many years prior. I started my marine journey, like many, in a 13.5 Fluval Evo, ran for approx 7-8 months. During that time, I added my first few coral (Clove, Toadstool, GSP, Devils Hand, various Finger Leathers, Mushrooms, normal starter coral..) After a few months of learning I switched over to Fritz's RPM Blue Box, from regular IO, due to desired parameters, mixing time, ancedotals, etc. This followed with a few more months of success and the beggings of some growth/coloration. Added a Wall Hammer, baby Torch head, three Duncans, a Bubble Coral, multiple zoa colonies during this time.

At this point I was tired of my newbie aquascape and ready for more space for my Clowns, Fiji Blue Devil Damsel, and Coral, so I decided an upgrade was in order....

Enter: Current Build & The Situation

I cycled my current 29 DT w 20 long DIY sump at the end of 2020, and it has been up and running since. Plumbed in an additional 7-8 gallon frag tub about two months ago. Everything went smooth for the first couple months, and then Bryopsis (carried from a Petco Feather Duster most likely) set in.. I was able to manage by hand for awhile and things continued to go well for the most part.

So then, about the same time I plumb in the tub, I add some SPS test pieces (Monti, Birds Nest, Psammacora, Lepto) and a few more LPS too (Blasto, Lobo, Trumpets, Favia). At this point I am doing weekly 5 gallon water changes, and attempt to clean up Bryopsis by cleaning the sandbed with a siphon and turkey baster (bad idea I now know). Long story short this basically re-jumped the Bryopsis growth and its spread like crazy.

This is when things take a turn for the worst.

After another week or so of research and manual removal, I ordered some Reef Flux and decided to raise the Magnesium level as well. I raised from 1350 to 1550 over the course of 3-4 days. This was the last time my ducan colonies opened (about a month ago). The Reef Flux arrived, so I used as directed for a week and a half, and then did a 10 gallon water change as other corals were also receding. Anyways after all this and a couple more water changes my Duncans and Zoas are all still closed, and I am worried they may not last longer. LPS and Softies have less polyp extenstion but otherwise unaffected. SPS doing great.

PARAMETERS:
Salinity = 1.026
Temp = 25.5 C
ph= 8.0
dKh = 9.5
Calcium = 450
Mag = 1470
Nitrate = 2.5-5 (less during Reef Flux treatment and less during heavy wc periods)
Phos = 0.02

Lighting and flow have not changed. I dip everything before it enters, and other than occosional aptasia have no KNOWN pests. No fish or other critters that pick at coral. LFS suggested low nutrients as the problem? I have also wondered if the most recent box of RPM Blue was a bad batch or something, because I opened it about the time this all started too... I really have no idea and am beyond frustrated at this point so any advice or anuthing at all would be greatly appreciated!! Thank you so much & happy reefing!
It sounds like you have a lot of different corals - all of which will try to compete with each other via toxins, etc. The corals all seem to be in a very small tank. Your parameters look good (though you don't have an ICP test). I think you might be 'overdoing' what your adding. Beyond what you're doing - I wonder - do you use activated carbon? a Skimmer? IMHO - this is not related to low nutrients. How did you manage your lighting when you made the change between the tans.
 
Run some carbon and lower the mag. They are probably still ticked off from the sudden changes from the mag/reef flux. Both should be very hardy corals so should come back once your let them settle from this change.
 
I'm inclined to agree both with your LFS (low nutrients) and MnFish1, doing too much at once. Fish poop is the best all around coral food and I would be adding more fish if this was my system. It can take weeks to months for corals to acclimate and start feeding well and competeing against algae for nutrients. With PO4 at just .02 mg/l I would consider it low and would be feeding my fish more.
 
Theres a bunch of reviews just like this all over the internet after using fluconazole unfortunately.
I wish i knew the determining factor why some have success and others have horrible experiences with it nuking a bunch of random stuff in the tank.
 
Theres a bunch of reviews just like this all over the internet after using fluconazole unfortunately.
I wish i knew the determining factor why some have success and others have horrible experiences with it nuking a bunch of random stuff in the tank.
Probably because fluconazole does not just kill 'bryopsis' or whatever you're trying to kill. It kills a bunch of stuff. Probably because people don't accurately calculate their tank volume - and overdose. Probably because people don't follow directions (not directed at the OP - just a general comment). Probably because when other things are killed, toxins are released. If you have a good 'export system', your corals will probably not have a problem. if you do not have a good export system (great skimmer, carbon, etc), you may very well have a problem. I (from personal experience) avoid these products 'like the plague') and again - sorry for the OP
 
Probably because fluconazole does not just kill 'bryopsis' or whatever you're trying to kill. It kills a bunch of stuff. Probably because people don't accurately calculate their tank volume - and overdose. Probably because people don't follow directions (not directed at the OP - just a general comment). Probably because when other things are killed, toxins are released. If you have a good 'export system', your corals will probably not have a problem. if you do not have a good export system (great skimmer, carbon, etc), you may very well have a problem. I (from personal experience) avoid these products 'like the plague') and again - sorry for the OP
This is true.
But im mainly speaking from a chemistry standpoint...

Im not advocating the use of any products, but trying to point out maybe and quite possibly the fluconazole is to blame here....
 
Theres a bunch of reviews just like this all over the internet after using fluconazole unfortunately.
I wish i knew the determining factor why some have success and others have horrible experiences with it nuking a bunch of random stuff in the tank.
that's what i experienced... some corals took it pretty bad.
 
This is true.
But im mainly speaking from a chemistry standpoint...

Im not advocating the use of any products, but trying to point out maybe and quite possibly the fluconazole is to blame here....
I was agreeing with you
 
I run a Curve 5 Skimmer, so skimming not an issue. Run carbon and purigen as well, though I did not for the 1.5 week flux treatment. Perhaps a bit of chem warfare during this time too?
As far as the mag, I have tried and it stays pretty high.. has to the salt mix. Saw ICP tests where blue box was 200ish ppm higher in mag than company claimed.
 
I had the same idea, only some coral (like the Duncan) have been closed since BEFORE flux.. But flux definitely did make things worse.
 
Best part is I did not completely erradicate bryopsis... 95%+ gone but still.. had to end early for coral health.
 

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