Brown string pellet things all over sandbed. Is this ok?

[lsween89]

I’ve suddenly noticed a lot of these small brown things all over the sandbed. Had a bit of a panic. Asked Chat GBT and it says it’s a good sign and is the tank maturing and is waste from sand dwelling critters. Does this seem right or is this another bad thing I need to deal with 4 or so months into this reef life and I’m about ready to give up! It’s just one thing after another.

 

[56longroof]

What's in the tank?

 

[lsween89]

2 clowns
1 neon blue goby
1 bumblebee hermit
3 snails
Bunch of micro brittle stars
1 fire shrimp

 

[ColorMeGone]

Looks like fish poop to me. Net it out and see.

 

[Michael Hughes]

I have these in my fishless frag tank (~8 months old) and have been wondering the same thing. Maybe snail feces?

 

[Chunkyfuzzbucket]

Did you ever find out what these were? I'm on my 8th week and just had the same exact things pop up on my sanded within hours. I only have 2 fish, 1 cleaner shrimp, and 4 snails