Who Gives A Fish Forums

Weekly changes are pretty standard for a 5 gallon. What's your water source? If you're using tap, maybe the conditioner isn't cutting it. I use Seachem Prime and let the water sit for an hour before adding it.

Mine's in a 5-gallon with a cheap clip-on LED. No issues, but I only run it 6 hours. They don't need much. Just enough to see their food and not trip over decor.