Hi there: I'd like to add something else here. When you add plants, make sure you take off and discard any metal clips or anything holding the plant or roots together. Sometimes metal clips can have some bad stuff in them. Also, some people quarantine or disinfect plants before adding them to a healthy aquarium. Not sure how others feel about this, but I did it for years, just like quarantining fish. I used to bath any new plants in a weak potassium permanganate solution, rinse well, then plant. I hope this helps,
frogdog