Returning aquarist (sort of)... my Dad was big into fish so I grew up with tanks and the associated paraphanelia, but things have moved on in 30-40 years
I started a tank (190l / 42g) back in early March and it's currently home to about 25 fish. It took a while to get the "fishless cycling" done (I was getting my water tested weekly at my LFS
and came away 3 weeks in a row without any fish as my ammonia was too high)... still they could of sold me some "quick dying" fish so kudos to them for giving me the right advice
I don't want to overload the tank so as far a I'm concerned the tank is just about fully stocked (maybe a couple more female mollies as the one I have gets no peace), but so far I've stuck to artificial plants.
My aim over the next couple of months is to migrate to live plants in the tank and to remove the artificial ones as I undestand they increase the stability of the water, provide better hiding places for the fish and just look nicer...