I’ve been growing a hydroponic Anthurium for three years. It started as a very small seedling planted in a net pot filled with pebbles, bark, coconut husks, and LECA. The net pot is placed on top of a glass vase, with water always inside the vase, soaking the bottom of the net pot. The plant is kept near a north-facing window.
Every month, I clean the glass vase thoroughly, rinse the substrate in the net pot, and wash both the front and back of the Anthurium leaves. I then pour about 20 ml of diluted liquid fertilizer (Schultz 10-15-10, diluted at a ratio of 1:1000 with water) into the vase, refill it with water, and ensure that the bottom of the net pot is soaked in about 1 cm of water. I check the water level daily and add water whenever it drops below the bottom of the net pot.
From my experience, hydroponic Anthuriums do better in larger vases. Small vases make it hard to keep them healthy. This particular Anthurium in pictures is in a 6-inch net pot (15 cm in diameter), and the total height of the plant and vase is about 70 cm, making it quite a large setup.
图片上是养了3年的水培红掌，一开始是一棵很小的苗，种在定植盆里，盆里有石子、树皮、椰壳、陶粒。定植盆放在玻璃花瓶的上面，玻璃花瓶里一直有水，水浸泡着定植盆的底部。摆放在朝北的窗户旁边。
每个月清洗一遍玻璃花瓶，彻底冲洗定植盆里的植料，也把红掌叶片的正面和反面都冲洗一下，把兑好的液体肥（Schultz 10-15-10，按1比1000兑水）大概20毫升倒到玻璃瓶里，然后装水，定植盆的底部约1厘米位置要浸泡在水里。每天查看一次，如果水位低于定植盆就加水。
从我的经验看，水培红掌的花瓶最好大一些，太小的花瓶很难把它养好。图片上这一棵红掌的定植盆是6英寸花盆（15厘米口径），包括植物和花瓶的高度是70厘米，很大的一盆。
(By Qiuye. Not for reprint. 不得转载！)