Any article that gives Tetraodon nigroviridis and T. fluviatilis as FW and the former as a good community fish is based on dry lab results without actual personal experience with the fish, most likely repeating all the bad info you have already seen on the web and in old books. Figure-8s are also not FW, and are risky as community.
If you want better info, see the Aqualog monograph by Klaus Ebert. It is better than all the other sources combined.
No, a Figure-8 does not have to have BW, but in FW it will be prone to disease (Ich, eye probs, fungus) and will not be likely to grow to normal size and will definitely not live a normal lifeapn.
They are carnivores, some have been reported to eat flake. It is not a satisfactory diet for them and the their teeth will overgrow resulting in starvation. They need lots of snails, shrimp with shell, and shellfish.
Keeping one of these fish with a breeding pair of Chiclids is, quite frankly, ridiculous, but it is your tank and your choice.
If you want better info, see the Aqualog monograph by Klaus Ebert. It is better than all the other sources combined.
No, a Figure-8 does not have to have BW, but in FW it will be prone to disease (Ich, eye probs, fungus) and will not be likely to grow to normal size and will definitely not live a normal lifeapn.
They are carnivores, some have been reported to eat flake. It is not a satisfactory diet for them and the their teeth will overgrow resulting in starvation. They need lots of snails, shrimp with shell, and shellfish.
Keeping one of these fish with a breeding pair of Chiclids is, quite frankly, ridiculous, but it is your tank and your choice.