Vermiculate is rich in minerals such as aluminum, magnesium, and iron. It has a compact structure, thus is recommended to mix with gravel or laterite. Usually vermiculate is used as a lower layer in a planted aquarium.
Just need proper fertilizers and lighting
has an extensive usage in planted aquariums, yet is not suitable for delicate roots. The substrate is porous clay gravel, light and loose,which differs from common gravel. Although Fluorite is more expensive than gravel and sand, the substrate contains high amounts of iron. It is possible to use Fluorite for a long time without needing to change it. A mixture of gravel, sand, and fluorite can be used in a planted aquarium though it is recommended to rinse fluorite substrate before using.
For example, for rooted plants you need root tabs
To be successful in growing aquarium plants, a hobbyist must first reference the water quality for the type of plants desired and adjust water hardness and pH accordingly. There are several ways this can be done. One method is to use R.O. (reverse osmosis) or D.I. (deionized water). Like rainwater, R.O. and D.I. Water do not contain hard minerals, thus softening aquarium water. Another technique is to filter the aquarium water through a peat moss, as this will lower the pH of the water. The peat moss can also be placed in a power filter or under the gravel if using an under gravel filter.
Best plants for low light / gravel tanks