Hi, I'd like to know, if I pinch off the bottom of stems of bunched plants that have roots will that damage the plants? I just got some bunched plants that are too tall and I'd like to shorten them. So I'd have to pinch off the bottom of the stems that have roots. I'm assuming, if they don't die, the roots will grow back. But I may have to keep pinching off the roots to keep shortening the plants. Will this harm the plants? I don't know what kind of plants they are. They're from Petco. I tried buying plants from Amazon, but they're $15 a piece that includes shipping and they all died. So I thought for that price, buy some for $3.49 a bunch and hope some live. I'm guessing they're all medium light. I'm using Flourish Excel and Flourish.