I have a load of Amazon Frogbit and Water Lettuce floating in my tank - together they cover about half of the surface. I'm just wondering if they are going to hinder my ability to grow other plants properly by blocking out too much light. At the moment I only have Anubias and Java Ferns tied to bogwood, but now that I've upgraded my lights (to 1.54wpg of t5) I'm hoping to add a load of Vallis, Amazon Swords, Crypts and whatever else takes my fancy (but isn't too demanding). I dose APF Plant Nutrition and EasyCarbo. I could always just get rid of the floating plants but my fish seem to love them.