Biota Yellow Tang HLLE

[bluemon]

So my Biota Yellow Tang of ~2 months has grown quite a bit but also has been developing a mild HLLE.

Just want to get ahead of it before it leads to anything permanent.

No stray voltage, and I use a grounding probe.

Nitrates are at around 20 at all times

I do have a GFO reactor and a Carbon reactor (running ROX, not lignite carbon, not tumbling), but I removed the carbon reactor just yesterday for caution. I now just have a bag next to the skimmer.

I feed heavily, Nori everyday as well as a homemade food with a lot of seafood soaked in selcon.

Anything else I can do to help this guy out?

Or do you think the proactive removal of carbon from the reactor helped?

Right now I just have some rubble in the reactor chamber instead as a prefilter for GFO

 

[vetteguy53081]

So my Biota Yellow Tang of ~2 months has grown quite a bit but also has been developing a mild HLLE.

Just want to get ahead of it before it leads to anything permanent.

No stray voltage, and I use a grounding probe.

Nitrates are at around 20 at all times

I do have a GFO reactor and a Carbon reactor (running ROX, not lignite carbon, not tumbling), but I removed the carbon reactor just yesterday for caution. I now just have a bag next to the skimmer.

I feed heavily, Nori everyday as well as a homemade food with a lot of seafood soaked in selcon.

Anything else I can do to help this guy out?

Or do you think the proactive removal of carbon from the reactor helped?

Right now I just have some rubble in the reactor chamber instead as a prefilter for GFO

GFO and carbon may be contributing to this which I rarely see in the Biota version.
What foods are you feeding it?

 

[bluemon]

So my Biota Yellow Tang of ~2 months has grown quite a bit but also has been developing a mild HLLE.

Just want to get ahead of it before it leads to anything permanent.

No stray voltage, and I use a grounding probe.

Nitrates are at around 20 at all times

I do have a GFO reactor and a Carbon reactor (running ROX, not lignite carbon, not tumbling), but I removed the carbon reactor just yesterday for caution. I now just have a bag next to the skimmer.

I feed heavily, Nori everyday as well as a homemade food with a lot of seafood soaked in selcon.

Anything else I can do to help this guy out?

Or do you think the proactive removal of carbon from the reactor helped?

Right now I just have some rubble in the reactor chamber instead as a prefilter for GFO

GFO and carbon may be contributing to this which I rarely see in the Biota version.
What foods are you feeding it?

Homemade food that includes clams, mysis, white fish, shrimp, squid, pellets, brine shrimp and spirulina.

That plus nori and selcon.

My GFO and carbon reactor ran at a VERY LOW flow, just a trickle out from them out of the return.

I did have the effluence from the reactors go into the return chamber directly though. Maybe I should have them go to the skimmer chamber?

 

[vetteguy53081]

Homemade food that includes clams, mysis, white fish, shrimp, squid, pellets, brine shrimp and spirulina.

That plus nori and selcon.

My GFO and carbon reactor ran at a VERY LOW flow, just a trickle out from them out of the return.

I did have the effluence from the reactors go into the return chamber directly though. Maybe I should have them go to the skimmer chamber?

I would prefer skimmer chamber especially GFO is strong.
Consider adding to diet:
LRS Fish Frenzy
Formula 2 frozen
Spirulina brine shrimp
Nori seaweed occasionally basted with Garlic extract

 

[bluemon]

Homemade food that includes clams, mysis, white fish, shrimp, squid, pellets, brine shrimp and spirulina.

That plus nori and selcon.

My GFO and carbon reactor ran at a VERY LOW flow, just a trickle out from them out of the return.

I did have the effluence from the reactors go into the return chamber directly though. Maybe I should have them go to the skimmer chamber?

I would prefer skimmer chamber especially GFO is strong.
Consider adding to diet:
LRS Fish Frenzy
Formula 2 frozen
Spirulina brine shrimp
Nori seaweed occasionally basted with Garlic extract

I already feed spirulina brine shrimp and LRS sometimes.

But the homemade frozen food essentially is the LRS replacement.

The Yellow Tang should be able to recover from as it is still mild, correct?

 

[vetteguy53081]

I already feed spirulina brine shrimp and LRS sometimes.

But the homemade frozen food essentially is the LRS replacement.

The Yellow Tang should be able to recover from as it is still mild, correct?

Often, Yes on recovery.

 

[exnisstech]

I have 3 biota and 2 wild caught yellows. I've had my wild ones for several years and they have zero HLLE. I also kept a hippo for 5 years that had zero and I have a large purple that I've had for over 7 years that has zero.
I mention all of that because 2 of my 3 biota yellows have some and I don't think it's from improper nutrition because they are in the same tank as one wild yellow and the old purple.
I remember reading it was an issue earlier in the breeding program but I can't remember details.
I never run carbon. I feed PE mysis, RODs and LRS frozen 3-4: times a day along with formula 1 and 2 pellets and dk1 pellets. Nori amd algae grown in my ATS

These fish are all together.
7+ yo purple

Wild yellow

One of the biota yellows

 

[bluemon]

I have 3 biota and 2 wild caught yellows. I've had my wild ones for several years and they have zero HLLE. I also kept a hippo for 5 years that had zero and I have a large purple that I've had for over 7 years that has zero.
I mention all of that because 2 of my 3 biota yellows have some and I don't think it's from improper nutrition because they are in the same tank as one wild yellow and the old purple.
I remember reading it was an issue earlier in the breeding program but I can't remember details.
I never run carbon. I feed PE mysis, RODs and LRS frozen 3-4: times a day along with formula 1 and 2 pellets and dk1 pellets. Nori amd algae grown in my ATS

These fish are all together.
7+ yo purple

Wild yellow

One of the biota yellows

I’ve read someone’s theory that being reared in a Captive Bred environment is what is leading to HLLE.

Now I don’t 100% trust anything without scientific backing but seems there is a pattern here.

And it seems like a plausible explanation as well

Thank you for your pictures.

 

[painter1982]

I have a biota yellow tang also. I’ve have it a couple months. It seems to have hlle too. It only eats algae. Macro 5 types and what’s growing on the rocks or anything else. It won’t eat anything else I’ve tried. I don’t run carbon or anything. It’s in an sps tank. I do weekly 10 to 25% water changes. I dose with AFR. I have my tank water grounded. I’m not sure what could cause it.

 

[Jay Hemdal]

So my Biota Yellow Tang of ~2 months has grown quite a bit but also has been developing a mild HLLE.

Just want to get ahead of it before it leads to anything permanent.

No stray voltage, and I use a grounding probe.

Nitrates are at around 20 at all times

I do have a GFO reactor and a Carbon reactor (running ROX, not lignite carbon, not tumbling), but I removed the carbon reactor just yesterday for caution. I now just have a bag next to the skimmer.

I feed heavily, Nori everyday as well as a homemade food with a lot of seafood soaked in selcon.

Anything else I can do to help this guy out?

Or do you think the proactive removal of carbon from the reactor helped?

Right now I just have some rubble in the reactor chamber instead as a prefilter for GFO

Captive tangs also show a related issue I call epithelial thinning. I wrote about it here:

Captive-Bred Yellow Tangs - showing HLLE? - CORAL Magazine

I've seen photographs of wild Black Tangs, taken with flash photography, where they show what looks like classic HLLE lesions, but which is simply due to the camera flash.

www.coralmagazine.com

I don’t have a cure for you. Your case is different in that the other fish arrived with it and then grew out of it, while yours came in fine and then developed it.

 

[W31Olds]

Maybe check your RODI system as that may be a contributing factor.

 

[bluemon]

Captive tangs also show a related issue I call epithelial thinning. I wrote about it here:

Captive-Bred Yellow Tangs - showing HLLE? - CORAL Magazine

I've seen photographs of wild Black Tangs, taken with flash photography, where they show what looks like classic HLLE lesions, but which is simply due to the camera flash.

www.coralmagazine.com

I don’t have a cure for you. Your case is different in that the other fish arrived with it and then grew out of it, while yours came in fine and then developed it.

Looking at old pictures of my fish when it arrived, maybe it had precursors to HLLE already?

I amounted it to it being young as it was pale and bony overall but is this something of concern?

 

[Bpones]

Looking at old pictures of my fish when it arrived, maybe it had precursors to HLLE already?

I amounted it to it being young as it was pale and bony overall but is this something of concern?

Very interesting. I’ve had my CB TY for a week today and as the color has come in I’m starting to notice this same marking on mine. Looking back it seems to already have been showing this when shipped. Curious how it will end up.