Fishes not eating

[bunty82]

Hi, for the past 1 week my green texas 7 inch,green terrror 5 inch are not eating.i test water parameters everything is fine.
i added heater to the tank.
please help.

 

[Lupin]

I'd rather have the full details so it will be more helpful to cover some issues that may cause this unusual behavior.

Things to look for:
1. Unusual behavioral patterns. Any erratic swimming? Labored breathing?
2. What do you feed?
3. How do the gills look?
4. How does the poop look?

I'd give full answers in this form below.

1. What is the size of your tank?

2. What are your water parameters? State the brand of test kit used.

3. Is your aquarium set up freshwater or brackish water?

4. How long the aquarium has been set up?

5. What fish do you have? How many are in your tank? How big are they? How long have you had them?

6. Were the fish placed under quarantine period (minus the first batch from the point wherein the tank is ready to accommodate the inhabitants)?

7. What temperature is the tank water currently?

8. Are there live plants in the aquarium?

9. What filter are you using? State brand, maintenance routine and power capacity.

10. Any other equipment used (aside from heater and filter which are two very important components of the tank)?

11. Does your aquarium receive natural sunlight at any given part of the day? What is your lighting schedule (assuming you do not rely on sunlight for our viewing pleasure)?

12. When did you perform your last water change and how much water was changed? How often do you change your water? Do you vacuum the substrate?

13. What foods do you provide your fish? What is the feeding schedule?

14. What unusual signs have you observed in your fish?

15. Have you treated your fish ahead of diagnosis? If so, what treatments did you use? State your reasons for planning ahead of proper diagnosis.