10 gallon fish tank?

i just got my first 10 gallon fish tank all set up with a filter and a fluorescent bulb. It is the 10 gallon starter kit from Tetra brand. I also have a heater and i'm keeping it at 79 degrees. I put some sand on the bottom and then i put two pieces of driftwood with java moss around it. I also use two pieces of plastic (circular with holes in them) to grow riccia inbetween them. Today, i added a dwarf puffer and a green tiger barb. Is there any advice on this tank? Thanks. Good answers only...