Is this a wind-up or for real? Seriously, that's not a textbook selection of fish for any community! Lots of potential for things to go disastrously wrong. Furthermore, monos, morays and green spotted puffers unquestionably need brackish water to succeed in the long term. Morays invariably go on hunger strikes if kept in freshwater for too long, and GSPs become stunted and live for only half as long as in brackish water tanks. Monos can last a long time in freshwater, but are much more sickly and they won't settle in properly.
Obviously clown knives aren't even remotely compatible with discus. Morays and puffers view crabs/crayfish as food. Amphibians shouldn't be mixed with larger fish (and I'd argue fish of any kind). Needlenose are peaceful schooling fish (though predatory) and will be hammered by a territorial clown knife. Elephantnoses and spiny eels are difficult to feed in tanks with catfish and other active nocturnal foragers.
And so it goes on... While there's nothing to say you can't physically put these fish in the same tank, there's absolutely no question at all that it will be a total train wreck in the long term. Over the months fish will starve, be eaten, bullied, become diseased, and so on. Please please please review the needs of these fishes before things get out of hand!
Cheers, Neale
You can mix puffers with other fish. When they do mature and get huge you may need to seperate if they start being to agressive
I have mine with.
1. Elephant nose
2. Peacock Eeel
3. Discus
4. Gourami
5. Moray Eel
6. African Butterfly
7. Clown Knife
8. Upside Down Cat
9. Green Spotted Puffer
10. Mono Fish
11. Needle Nose
12. Three Bichirs (ornate, albino, senegal)
13. Tiger Salamanders
14. Newts
15. Frogs
16. Crabs
17. Crawfish