Something is wounding my foxtail

[js-3Design]

Hey, is need some help.

Something is wounding my foxtail, supposedly during the night.
A week ago i woke op with it missing a bit of its side fin and a wound, the wound in the middle.
This morning it had another wound below that.

Its healty, eats well, have it for half a year.

Its a waterbox 3620 60gallon peninsula.

Tankmates:
6 chromis viridis
1 tailspot wrasse
Bi color blenny
A orchid dottyback
2 clownfish

A small urchin
5 Hermites (some quit big)
Snails

The foxtail gets frozen of dried food combined with nori and or fresh sea lettuce (from my refugium)

Its eating wel, not scared, it doesnt look stressed in any way

At first i believed it was because i switched to another tank 2 weeks ago (from an 50.3 aio)

But this morning it had the second wound.

I believe something is napping at it since the wounds werent there the night before.

I suspect my biggest hermite crab..

 

[js-3Design]

Also have 2 cleaner shrimp.

 

[Jay Hemdal Verified Community Expert]

Hey, is need some help.

Something is wounding my foxtail, supposedly during the night.
A week ago i woke op with it missing a bit of its side fin and a wound, the wound in the middle.
This morning it had another wound below that.

Its healty, eats well, have it for half a year.

Its a waterbox 3620 60gallon peninsula.

Tankmates:
6 chromis viridis
1 tailspot wrasse
Bi color blenny
A orchid dottyback
2 clownfish

A small urchin
5 Hermites (some quit big)
Snails

The foxtail gets frozen of dried food combined with nori and or fresh sea lettuce (from my refugium)

Its eating wel, not scared, it doesnt look stressed in any way

At first i believed it was because i switched to another tank 2 weeks ago (from an 50.3 aio)

But this morning it had the second wound.

I believe something is napping at it since the wounds werent there the night before.

I suspect my biggest hermite crab..

I see a lot of urchins do that to foxface, they bump into them at night. However, it mostly seems to happen with the black, medium spine urchins, sometimes long spined, but not the short spined or pencil urchins.

 

[vetteguy53081]

Hey, is need some help.

Something is wounding my foxtail, supposedly during the night.
A week ago i woke op with it missing a bit of its side fin and a wound, the wound in the middle.
This morning it had another wound below that.

Its healty, eats well, have it for half a year.

Its a waterbox 3620 60gallon peninsula.

Tankmates:
6 chromis viridis
1 tailspot wrasse
Bi color blenny
A orchid dottyback
2 clownfish

A small urchin
5 Hermites (some quit big)
Snails

The foxtail gets frozen of dried food combined with nori and or fresh sea lettuce (from my refugium)

Its eating wel, not scared, it doesnt look stressed in any way

At first i believed it was because i switched to another tank 2 weeks ago (from an 50.3 aio)

But this morning it had the second wound.

I believe something is napping at it since the wounds werent there the night before.

I suspect my biggest hermite crab..

Im seeing bite marks in lieu of urchin wounds and before seeing pics, suspected clownfish which I see you have. They are on their best behavior in our presence and be jerks in your absence. You can at feeding time set your cell phone on video mode for about 20 minutes and walk away and you must walk away as they know youre there.
Come back and review video and see if you see them causing issues

 

[Jay Hemdal Verified Community Expert]

Im seeing bite marks in lieu of urchin wounds and before seeing pics, suspected clownfish which I see you have. They are on their best behavior in our presence and be jerks in your absence. You can at feeding time set your cell phone on video mode for about 20 minutes and walk away and you must walk away as they know youre there.
Come back and review video and see if you see them causing issues

I looked again, and yes, the halfmoon shaped mark does look like a bite mark. The other round one is more typical of an urchin spine.

 

[js-3Design]

I looked again, and yes, the halfmoon shaped mark does look like a bite mark. The other round one is more typical of an urchin spine.

interesting, I didnt see him as a suspect. And that is unfortinate because I really like him. I'm going to think about what to do next. Thank you for your help:)