As stated above, they can go for months without eating but in good water and starting from good health. One of my cats fasted 6 months before caving to eat dead foods. So, don't fret yet.
IMHO, we need to focus on water parameters. What's 0.02? What are the units? We need to know ammonia, nitrites, nitrates, pH, temperature at the very least. These need to be measured with a good, reliable test kit, not test strips but a reputable liquid test-tube kit. My guess, your water parameters are no good. They will never eat until they are right.
I would also get the clarias out of the tank immediately, as stated above.
Please do not eat the fish. Ornamental fish are not raised the same as food fish, even if they are the same species. They can be and are often treated with medications that CANNOT and MUST NOT be used on food fish. You will be risking your health.
If you make your water good (which is of UTMOST IMPORTANCE), they can last some time in your tank but keep up an intensive search for someone with an appropriate tank to take them off your hands. Where are you located? The country of Jordan in the Middle East?
IMHO, we need to focus on water parameters. What's 0.02? What are the units? We need to know ammonia, nitrites, nitrates, pH, temperature at the very least. These need to be measured with a good, reliable test kit, not test strips but a reputable liquid test-tube kit. My guess, your water parameters are no good. They will never eat until they are right.
I would also get the clarias out of the tank immediately, as stated above.
Please do not eat the fish. Ornamental fish are not raised the same as food fish, even if they are the same species. They can be and are often treated with medications that CANNOT and MUST NOT be used on food fish. You will be risking your health.
If you make your water good (which is of UTMOST IMPORTANCE), they can last some time in your tank but keep up an intensive search for someone with an appropriate tank to take them off your hands. Where are you located? The country of Jordan in the Middle East?