Relatively speaking, the amount needed is quite large. If you don't use fertilizer for a long time and let it grow, its leaves will easily turn yellow and the whole will be thin. However, there are two situations to discuss. Generally speaking, the soil will be less than the water, and the frequency will be lower
(1) first, after taking root, it needs to use some compound fertilizer. In this way, it can help the plants grow stronger and the leaves will be greener.
(2) after that, it needs to be transferred to normal maintenance. The type of fertilizer is compound fertilizer. However, the frequency will be very low, generally only in spring and autumn, once a season
(1) for plants cultivated in this way, it is not suitable to apply chemical fertilizer, which is easy to understand. Generally speaking, we choose liquid fertilizer, or a few drops of wine, such as brandy. First grow roots, then add a few drops. Then is the maintenance after, relatively speaking, the frequency will be higher than the soil, about two or three weeks to need one
(2) in addition, it can be combined with water exchange. About every two weeks, I'll change the water for it. Then, add some (KH2SO4) solution to the new water. In this way, it is more conducive to the normal absorption of nutrients.
Either way, the concentration should not be too high and the quantity should not be too large. Otherwise, it may grow in vain, or burn roots.