is this normal..?

[Pipedreamer86]

Ok so since I moved my honey gouramis to my 150g tank two have adapted well and are coexisting fine with the 10 black skirts and cories but one just sits up in the top corner behind the heater, all day every day.for a week now. I've seen him eat and he is not dull in color, he just doesn't explore the tank.. is this normal?

 

[Pipedreamer86]

Just thought I'd add, API master test kit results from this mornings test 0 Nitrite 0 Amo 20 ppm Nitrate. Did 25% water change as weekly maintenance, Gourami still appears listless.