Slow deaths when you feed often
This looks like: organic overload — bacterial bloom, low oxygen pockets, climbing nitrate
Why this happens
Uneaten food and fine poop fuel heterotrophic bacteria that cloud water and chew oxygen. Nitrate creeps while fish breathe harder than tests suggest.
How sure are we? Strong when feeding is generous and water gets hazy intermittently.
What to do right now
- Halve portions for a week — feed what fish finish in 30–45 seconds, once or twice daily max.
- Siphon visible detritus from plants and carpet zones during the next water change.
- Do two 25% changes this week with matched, dechlorinated water to export nitrate safely.
- Adjust filter return to ripple the surface slightly — not a wave pool.
- Use the stocking calculator to ensure you are not over the practical limit for your volume.
What not to do
- Don’t add “bacterial starters” every week instead of feeding discipline.
If that doesn’t fix it
If fish still waste away, consider internal tapeworms or TB — rarer, photo and timeline matter.
Catch this earlier next time — log your water parameters in App-aquatic. Free forever.