Rio Orinoco Biotope (H. Osteocarus, P. Simulans)

[MattW71 187]

I uhh... I created a void or a black hole.

Those tetras must be like

 

[CassCats44 10]

I've made a pot of coffee less black than that

 

[WhistlingBadger66 22]

For most of us, "black water" is a bit of an exaggeration...

 

[CassCats44 10]

My fish the moment I do that water change and dilute the coffee water