First Viv Build - 36x36x18 Exo Terra for WTF

[pettios]

First of all, I know it's been such a long time since I've posted anything about the tank, but I've come across a (hopefully) small issue. I was doing my daily maintenance and I noticed multiple perfectly round holes in a manzanita branch in my tank. I also found one hole that seemed to match which was in the tb3/coconut fiber portion of the background. At first I wasn't sure if they had always been there, but after fiddling with it for a few minutes I turned my back to the tank and when I returned, sawdust had filled the hole. I jabbed at it with a toothpick and awaited whatever insect is in there to return and I somehow missed it again. I'm very concerned that this may be something catastrophic!

This happened maybe 10 minutes ago so I'm still on the very beginning of my search for an answer, but I figured I'd post here first to gather my thoughts and maybe get some input from the friendly experts here. I really hope this isn't termites or something else that could be harmful to my frogs and/or home!

Pictures:

This is the first hole that I noticed. It is just about middle of the picture and has been filled in with "sawdust" by whatever pest is in there. Sorry, I know its a bit tough to tell.



I noticed this hole shortly after. You can see it just below the base of the plant stem. It's about larger than the other, maybe 1/8 - 1/4 inch.

as always, thanks for any help you can provide!