I want to plant my already established 60 gallon aquarium. I'm a beginner when it comes to planted tanks the last time i tried it was a disaster. The plants i plan of growing are vallisneria amd sagittaria and anything else you all recommend. I do not have a plant light yet but I plan on get a finnex planted plus 24/7 hlc light, is this a good light for these plants what do you recommend? Also how do go about planting a already established tank, im guessing attaching to rocks and letting them sink.