What happens to a large-growing plant if it was forced to grow in a small tank? Background: My friend wants a king betta fish, so I'm making sure she's using my unused five gallon instead of her glass bowl. I don't have a lot of experience/knowledge with plants (thanks, cichlids), but I know plants will definitely cushion a beginner who's busy with a part time job and college. I'm unsure about buying plants online, but the plants sold nearby generally have a requirement of 10 gallons or need CO2. Plant/Tank Parameters: 5 Gallon Tank Dirted* + Gravel Low tech, low light +80F Temp (for the betta) *Many plants sold nearby need to be rooted. I'll most likely try to establish them dry if I have no other options. Concerns: What do I look for when buying plants online? 2-Day shipping like from Amazon? "Snail-free" signs? Java Moss sounds pleasant, but I can't find any in stores. Anacharis (if they can withstand 80F) is sold nearby but is snail-infested. Would the plant survive in a smaller container? Would something like an Amazon Sword stop short at the water surface? Would a betta fish be alright with a large plant? Vallisnera looks pretty, but I'd rather make sure the betta fish has space to breathe or enough water surface for gas exchange. Any suggestions/advice (plant-wise or other) would be great! Thank you.