Betta fish and stress-related diseases

[florabright]

I've noticed my betta has been acting lethargic and hiding more than usual. Water params are good, 0 ammonia, 0 nitrite, 10 nitrate. Tank is 5 gallons, heated to 78F, with a sponge filter. Any ideas what could be stressing him out?

[aquabug]

Stress can come from a lot of things. How's the flow on that sponge filter? Bettas don't like strong currents. Also, any tankmates? Even snails can sometimes mess with their vibe.

[havenly]

Stress can come from a lot of things. How's the flow on that sponge filter? Bettas don't like strong currents. Also, any tankmates? Even snails can sometimes mess with their vibe.

I agree. I'd check the flow first. My betta was stressed until I baffled the filter output with a sponge.

[jolynne4]

Mine got sketchy after I added a new decoration. Turns out the paint was leaching something. Maybe check if anything new went into the tank?

[stevonix]

Lighting could be a factor too. Is the tank near a window or do you have bright lights on for long hours? Bettas prefer dimmer, more natural light cycles.

[florabright]

Thanks for the suggestions, everyone. I'll try reducing the flow and see if that helps. No new decorations or tankmates, just him and a few plants.

[Foliums]

Yep, flow's a big one. Also, how often do you do water changes? Even with good params, buildup can stress them out. I do 20% weekly in my 5 gal.

[buddyo]

Mine was like that until I added more hiding spots. Floating plants and a betta hammock made a huge difference. They like to feel secure.

[Riveria9]

Mine was like that until I added more hiding spots. Floating plants and a betta hammock made a huge difference. They like to feel secure.

Same here! My dude chills under his hammock all day. It's like his safe space.

[Cobyx]

Could be the water temp fluctuating too much. What kinda heater you got? Some of the cheap ones don't hold steady.