New PBT lesion

BCash74

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I'm new to the forum: need to get my build thread going - hopefully will do so soon.

I've had this PBT for 4 weeks - he and all fish in tank were purchased from Dr. Reef Quarantined Aquaria. He came in skinny but has been fed aggressively - daily seaweed and 4-6 other feedings (TD Chromaboost with Selcon, flake, frozen mysis/brine). He's been healthy/happy and absolutely thriving.

Went to bed last night and he was perfect - awoke this morning and he had this lesion on his side. He is behaving normally: eating, active, fins fully extended, and no itching/scratching behavior.

Could this be a wound from a mantis shrimp?

My concern: I set the tank up with TBS livesand and live rock. I hit the jackpot (unintentionally as I specified I wanted "less critters") with hijackers. I've already caught two mantis shrimp and 3 or 4 gorilla crabs. I know I have at least two more mantis shrimp in the tank (I've heard and seen them both) and there are 10-20 other hijacker crabs of various sizes (a lot of porcelain crabs, but some other I'm not sure of yet). Since catching the 1st two mantis (caught them both in the same day) I haven't been as diligent setting my traps. I need to get back at it.

Other tank details:

Tank: 48"x24"x20" tall 100g IM ext (this is a short-term tank as I'm setting up my long-term tank - planning on a 7 or 8 footer). Rock work provides 18' of linear swimming before he overlaps himself.
Water parameters: SG 1.0253 (with hygrometer), Nitrate 7.6, Phosphate 0.06, alk 10.0, and calcium 415, pH 8.1-8.3
All inhabitants purchased through Dr. Reef Quarantined: 4 blue chromis, 1 yellow wrasse, one chalk bass. All other fish healthy, eating, and acting normally.

Thank you in advance for your thoughts!

Image.png
Image.png
 

Jay Hemdal

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I'm new to the forum: need to get my build thread going - hopefully will do so soon.

I've had this PBT for 4 weeks - he and all fish in tank were purchased from Dr. Reef Quarantined Aquaria. He came in skinny but has been fed aggressively - daily seaweed and 4-6 other feedings (TD Chromaboost with Selcon, flake, frozen mysis/brine). He's been healthy/happy and absolutely thriving.

Went to bed last night and he was perfect - awoke this morning and he had this lesion on his side. He is behaving normally: eating, active, fins fully extended, and no itching/scratching behavior.

Could this be a wound from a mantis shrimp?

My concern: I set the tank up with TBS livesand and live rock. I hit the jackpot (unintentionally as I specified I wanted "less critters") with hijackers. I've already caught two mantis shrimp and 3 or 4 gorilla crabs. I know I have at least two more mantis shrimp in the tank (I've heard and seen them both) and there are 10-20 other hijacker crabs of various sizes (a lot of porcelain crabs, but some other I'm not sure of yet). Since catching the 1st two mantis (caught them both in the same day) I haven't been as diligent setting my traps. I need to get back at it.

Other tank details:

Tank: 48"x24"x20" tall 100g IM ext (this is a short-term tank as I'm setting up my long-term tank - planning on a 7 or 8 footer). Rock work provides 18' of linear swimming before he overlaps himself.
Water parameters: SG 1.0253 (with hygrometer), Nitrate 7.6, Phosphate 0.06, alk 10.0, and calcium 415, pH 8.1-8.3
All inhabitants purchased through Dr. Reef Quarantined: 4 blue chromis, 1 yellow wrasse, one chalk bass. All other fish healthy, eating, and acting normally.

Thank you in advance for your thoughts!

Image.png
Image.png

Welcome to Reef2Reef!

Tough to see under blue lights, can you retake under white lights?

From what I can see though, this is likely a minor injury, it should heal on its own.
 

vetteguy53081

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I'm new to the forum: need to get my build thread going - hopefully will do so soon.

I've had this PBT for 4 weeks - he and all fish in tank were purchased from Dr. Reef Quarantined Aquaria. He came in skinny but has been fed aggressively - daily seaweed and 4-6 other feedings (TD Chromaboost with Selcon, flake, frozen mysis/brine). He's been healthy/happy and absolutely thriving.

Went to bed last night and he was perfect - awoke this morning and he had this lesion on his side. He is behaving normally: eating, active, fins fully extended, and no itching/scratching behavior.

Could this be a wound from a mantis shrimp?

My concern: I set the tank up with TBS livesand and live rock. I hit the jackpot (unintentionally as I specified I wanted "less critters") with hijackers. I've already caught two mantis shrimp and 3 or 4 gorilla crabs. I know I have at least two more mantis shrimp in the tank (I've heard and seen them both) and there are 10-20 other hijacker crabs of various sizes (a lot of porcelain crabs, but some other I'm not sure of yet). Since catching the 1st two mantis (caught them both in the same day) I haven't been as diligent setting my traps. I need to get back at it.

Other tank details:

Tank: 48"x24"x20" tall 100g IM ext (this is a short-term tank as I'm setting up my long-term tank - planning on a 7 or 8 footer). Rock work provides 18' of linear swimming before he overlaps himself.
Water parameters: SG 1.0253 (with hygrometer), Nitrate 7.6, Phosphate 0.06, alk 10.0, and calcium 415, pH 8.1-8.3
All inhabitants purchased through Dr. Reef Quarantined: 4 blue chromis, 1 yellow wrasse, one chalk bass. All other fish healthy, eating, and acting normally.

Thank you in advance for your thoughts!

Image.png
Image.png
Looks like a bite mark or puncture wound from an urchin if you have one
 
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BCash74

BCash74

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I will try and get a better photo tomorrow when I get home from work.

Don't have an urchin (though I have a tuxedo urchin ordered and on the way).

I modified my mantis shrimp today. Decided to add a "gravel ramp" to the inlet to make it easier for them to get in. I coated the bottle top with super glue and then added aquarium gravel. We'll see if it improves the trap at all.
Image.png
Image.png
 
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BCash74

BCash74

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No new photo updates, but that lesion is slowly starting to shrink. He continues to eat well, active. And no other concerning signs. Obvious to me now that it was probably a wound and not a pathogen/illness (which was my bigger concern.
 

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