How To Care For The Goldfish Plant. The best soil mix for your goldfish plant is two parts potting soil to one part perlite according to Roethling. A goldfish plant wants a lot of brightness but indirect.
The soil should be kept moist but not soaked to prevent fungal problems such as root rot. Ensure the temperature remains between 60-80ºF and keep the humidity moderate. If you pour cold water you will see that the leaves will develop brown spots.
The dosage of fertilizer should always be slightly below the dosage.
Its a great idea if you can to place it in a bright eastern area or a northern area if you live in warmer climate. 12 or more hours of light per day are necessary for the plant to grow happy and healthy and of course to bloom. You must maintain moderate to high humidity to make sure your Goldfish plant feels at home. Fertilize your Goldfish Plant Proper fertilization is another factor that plays vital role in the growth and nourishment of your goldfish plant.