I’ve had plants in my twenty gallon tank for 2 years and they’ve never don’t that well. Currently some of the plants in there are Anubis, java moss, java fern, and others but only a few are growing ok. I do not know why this is. There are a lot of snails in there which could be a problem. The gravel is normal gravel and has no nutrients. I put 3 pumps of thrive a week and occasionally use co2 booster. I have the light on for 8 hours a day. In the tank I have 5 danios and a Bristlenose pleco. Any ideas are appreciate.