Whats the best fertilizer to use?
Again to each his own, but for beginners one half strength(1/2 tsp.) of a balanced liquid fertilizer like Miracle-Gro or Peters 20-20-20 can work just fine. After a while you may want to alternate fertilizers & fine tune your formula depending on your water quality & the potting media you use. It’s best to fertilize about once a week during the Spring & Summer & reduce it to once a month when it turns cooler. It is also a good idea to flush out the excess salts from your pots once a month with pure water.