i have had small 1 gal. jars in the past but have upgraded to a 10 gal. I want to start a planted tank. What plant grows across the bottom like garss and requers littlle to know c02 and plant wich stand up so my fish can swim in it that again requires little to no c02. Im also wondering about what fish i should get will sharks and loaches go together if so what sharks would be ok for a 10 gallon. Or any other fish that are a good size that will go with a betta. Sorry for all the questions!!