Do you pick up the first or second round droppings. Rabbit don't digest their food thoroughly, so they habitually eat their droppings to pass through the gut twice.
I have large cichlid that dig, so I keep mostly non-substrate plants and root tab is useless to me. My African fern, Java fern and Anubias are naturally rock/drift wood bound plants. Even my Amazon sword is tied with fish line to a rock instead of planting in substrate. The live plants sold in my LFSs are not planted but weight down by lead, so I 'll wait and see if my Amazon sword will make it. If it works, I may attach other stem plants to rock. I am experimenting with different plants to let them sort out.
So far I haven't seen my Vieja or other fish munch on the plants. They are well fed daily. But I will be away soon for vacation without feeding, so I don't know if they will be hungry enough to eat my plants. Each time I came back from vacation, my tank turned crystal clean because my lazy Bristo pleco did their job. Also, I keep only tough texture fern, annubias and Amazon that aren't palatable to fish from what I read, and I will soon find out.
I haven't seen much algae growth except BBA which I am experimenting ways to control by peroxide or Excel. My plants are on the rock, so I can take them out and spray them. BBA is not new but pre existing in my non planted tank. With tripling light intensity, BBA could have taken over if not because I heavily planted to begin with.