
Help me name him?
Hello everyone! Have any name suggestions for this guy?

Hello everyone! Have any name suggestions for this guy?
I've inherited a fish tank that was in an terrible state, it's getting better but still not great. Can't really clean it because it's inside a media wall and it's about 140L while i only have access to like 20cm of that. Now out of nowhere I go like a hundred of these tiny bugs. Recently added some plants to the tank and 5 amano shrimp that I haven't seen since adding them.
Edit: Apparently they are baby fish. Thanks for the help, panic over.
Grabbed a bucket of gravel from the edge of a creek to add to my tank. Eventually 2 of these things popped up and tend burrow themselves partially in the ground.
Looking for some help finding out what my new fish are. I have kept some small cold water fish before mainly cloud minnows.
Collected these after seeing a Facebook post from someone who was moving house.
I’ve kept the filter and heaters running at the same setting they were already on.
Just hoping to find out what species of fish I have so I can research how best to look after them.
Any help would be great.
I bought a 125 gallon off marketplace for $100, but the crack was bigger than expected.
He had it professionally sealed, and I have seen it filled up with water. 125 gallons is a lot of water though, and I'm about to move to a second floor apartment.
Can I trust this seal? If not, is the tank still salvageable if I have the glass pane professionally replaced?
Thanks for your help!
Originally bought this tank about a month ago off of Facebook marketplace place along with some others for a good deal and noticed only after buying the largest one has this wavey like glass for the bottom. Just wanted to know if it is safe to hold water for a fish tank and I’m unsure any thoughts?