I really think we ought to up the GSP tank size too. Kismet, the GSP my family had for three years, was way too cramped in his 30 gallon. He looked like a betta in a bowl in that tank.
Tanks:
20-gal feeder breeder (platties and snails)
75-gal West African Lungfish + snails
Other pets: Pacific parrotlet, Italian Greyhound, lots of plants
40 gal minimum seems much more reasonable to me than 30. Also since it is bigger than the larger "standard" home tanks it may help people think thrice before buying that cute, innocent-looking little marble-sized fish...
Tanks:
20-gal feeder breeder (platties and snails)
75-gal West African Lungfish + snails
Other pets: Pacific parrotlet, Italian Greyhound, lots of plants
We are listing minimum tank sizes, and assuming good care and setup and handling. Minimum is never optimum, never. We need to define our terms to have better understanding.
The best setup for a GSP or a Ceylon would emulate an estuary or mangrove channel, but that is not very likely or realistic. Of course a 40 is better for each, and a 55 better still -given appropriate equipment and care and handling. But do we realistically want to set that as the minimum? I do think that would damage our credibility, especially when most of us do not that.