Night X

4/11/24 around midnight.
One Peppered Cory, was having swim bladder issues.
The system is a standard 10-gallon tank, connected to a 25-gallon cube by an aqua bridge. I'll include a detailed list of it's inhabitants below. It's filtered with a homemade sump. Very low tech.

System stock:
11* Harlequin Rasboras (Trigonostigma heteromorpha)
9*Peppered Cory's (Corydoras paleatus)
6*White Cloud Mountain Minnow (Tanichthys albonubes)
5*Amano shrimp(Caridina multidentata, formerly called Caridina japonica)
Countless mystery snails (Pomacea bridgesii)