If its helpful to anyone let me know, but i was drawing up plans to build from scratch for myself a diy betta barrack, im thinking pvc with drilled drip fittings, to drip into 1L macconna glass coffee jars, just need to figure out how to make a safe way for water to overflow without the fish being able to follow the water out and end up dead, any suggestions on that?, then have it all overflow gravity fed to a small planted sump filter, returned to tanks buy small pump and drippers.
If i can get someone to help me figure out how to make/mode the jars so they safely overflow, and a way to maybe set up a dump valve so you can do water changes from the sump not ea tank.
Once i figured those things out i will give it a go and document ea step.