I'm a first time live plant keeper and want to know what to do for the most success. I have a 10 gallon filtered tank with one male betta. I live at n a naturally tropical climate so water is always 78-80 with no heater. Plants are two java fern and two amazon swords. Gravel only. I'm interested in adding another substrate but price is a concern. I have LED lights but watts are unknown. Tank is PetSmart Grreat Choice. Please critique and educate me. Current concerns are holes in amazon, whether the larger amazon is crushed by thr gravel I placed in the center of it to hold it down, brown spots on leaves, and the discoloration on the gravel. Brown algae maybe?