...because why not?
I "rescued" a crowntail betta yesterday, and put him into a temporary tupperware home...where for all intents and purposes, he'd probably be fine.
But I don't like having bettas in anything less than 2 gallons...my conscience nags at me. So today I set out on a DIY adventure, not only for the fish, but for myself, because I'm thinking of maybe starting up a proper freshwater tank soon.
Two things I really wanted was filtration and heat. Heat wasn't an issue since tiny heaters are commonplace nowadays. Filtration was another matter, though...especially since I wasn't going to use a square tank, and didn't want an overflow filter anyway.
Looked up some DIY designs online and found one to my liking, and modified it a bit to turn it into an undergravel filter.
Basically...that's a fountain-pump with a plastic parsley bottle shoved on top of it. Stuff a little poly-fil in the bottle, and viola, you have a power-filter.
That's all fine and good...but how to stop the pump from sucking up bits of gravel? I wracked my brain for awhile before deciding that one of my extra water-trays looked about the right size, so I cut off the edges with scissors, and poked a bunch of holes in it with the soldering iron. I'll also probably cover it with a layer of rubberized screen mesh to stop any small particles of grit from getting to the impeller.
I'll probably put the heater underneath the tray as well, since there's plenty of room, and the water will be recirculating, in order to keep it out of sight and recover a little bit of space for the fish.
I'll also probably put a circular airstone in the center for aesthetics. Not sure that it's really needed, and I may change my mind. Other than that, the decorations will mostly be plastic, except for some sprigs of Anacharis. The tank will be sitting in an East-facing window, so I'm hoping that's enough light for the plants and fish both. I don't intend on supplementing with artificial light at the moment.