2.5 Gallon shrimp tank

Introduction 55 Gallon 30 Gallon 29 Gallon 14 Gallon 10 Gallon shrimp tank 5 Gallon fry 2 1/2 Gallon R.I.P. DIY CO2

The 2.5 gallon currently has one ghost shrimp, a betta, and a guppy.  Equipment consists of a HOB heater and a Red Sea Nano HOB filter.   I added a few pieces of driftwood and some twigs along with some hornwort and wisteria, water sprite, etc.  The picture below is not up-to-date.