A popular house plant that comes in many different color variations and leaf sizes, pothos is an easy-to-grow vining plant that will do well even in lower light situations. Though, of course, the more light is has to photosynthesize, the better it will be at keeping your fish tank clean. 

Turn that fish waste into healthy greens if you're looking to grow some food while keeping your fish aquarium in balance.

Taro is an edible type of the plant commonly known as elephant ear, so when you're looking to thin out your riparium plants, you can do so by pulling out some of these edible tubers and cooking them for a healthy meal. The leaves are also edible but must be cooked first. It's fast-growing and does fabulously well in a bog/riparium set-up for the fish tank. 

Sugar Cane is an edible grass that does well with a lot of sunlight. It is also fast-growing and comes in a lot of different colors and flavors so trying out a couple will certainly be a lot healthier than processed sugar, plus, you can keep the plant in check by harvesting after several months to make your own (sugar) cane juice, which is packed with nutrients. 

Isn't it wholly appropiate to add something called "raindrop" to your aquarium setup?

Rhipsalis is a tropical, jungle cactus that is super fast growing, appreciates plenty of moisture and will look absolutely stunning draping over the side of your fish tank. Grow it in leca clay substrate clipped to the top of your aquarium to get it started and stabalized because this plant also can get massive or even try a large, in tank planter that sits on the floor of your fish aquarium, for an easy and inexpensive way to add the power of house plants to your Walstad Method fish waste cleaning system. 

Did you know sweet potato vines are not only super easy to grow but have several fabulous ornamental varieties? The vine is easy to keep up with with just a monthly trim, or you can train it up a trellis and overtop of a bed canopy.   

For those who are not focused on growing food but simply need something fabulous and fast-growing to balance out their fish aquariums, elephant ears come in many beautiful colors with lots of differing varigations. Since they are heavy feeding and fast-growing, elephant ears might be just the plant you're looking for to add balance to your filter-less, low-tech fish tank set-up quickly. 

No worries, though most people know bamboo to be a very...large...plant, bamboo also comes in dwarf varieties that are perfect for smaller ripariums on fish tanks. Grown in a riparium planter at the top of a fish tank, bamboo does well in leca, which will make the maintenance of your plant a lot cleaner and easier, while also allowing the bamboo full access to the nutrients in the water column of your Walstad Method fish tank. 

Your bamboo plants will also appreciate the additional humidity created by the water evaporating from fish aquarium, which it will need to grow properly and thrive.