"Rasbora heteromorpha.. that's a name from the early days"
I confess, my fishkeeping book was written in the 50's... or rather, my version was printed in the 50's and updated from a original 30's authoring. Sadly, I do not have any of the live fishfood collecting opportunities described therein, but I also worry little about coal gas.
Win some, Lose some.
Looks about 40 Gallon Tank
Betta, Buenos Aires Tetra, Neon Tetra, Harlequin Rasbora, and Otocinclus
Wisteria, Amazon Sword, Java Fern, and my unstoppable Trumpet Snail Army
Looks about 75 Gallon Tank
Wet and Empty; thinking Scalare, Corydoras, Otocinclus