Description: My oldest tank was setup Feb of 2013. Its 10 gallons (picked up at a second hand store) It has a gravel bed, an Aqueon incandescent lid, an Aqueon 50w heater, a Tetra Whisper 20 air pump (because I have 3 air effects, an air stone, a waterwheel, and a flexible LED bubble wall, and it also runs my other 10g tank) It originally had an Aqueon Quiet Flow 10 filter and I used that for 3 months but switched to an Aqua-Tech 5-15 power filter in favor of moving the higher capacity Aqueon to be used with a second identical filter in my 30g tank.
Advice: READ A LOT! Google everything and use the advise you read.
About Yourself: I started keeping fish for my son, who saw a friend's aquarium and was VERY entertained. He was less than a year old at the time. It has turned into a hobby. Today, through accidental circumstances, I now have 2 10 gallon tanks as well as a 30 gallon. One 10g tank is my original, I have not had any problems with it since setting it up other than with my original fish who came to me with a case of ick and eventually got some fin rot mixed in. We lost only one fish though. Now they are healthy and happy. Having no other problems. Even after introducing more fish recently. It might be a bit over crowded but the levels are good, the fish are healthy and everyone seems happy.
The 30 gallon tank with 15 small ciclids and a small shark, we took on after my father-in-law died. We didn't really want it but after seeing the state of neglect they were left in we had to help them. The fish were so unhappy and hungry they started eating each other! We had to transfer all the fish to a temporary 10 gallon tank for the move. We reset the 30 gallon with 60% old water saved from the tank and ran it with the old Bio-wheel filter. After moving the fish over to the 30g, we eventually swapped out the HUGE bio-wheel for 2 smaller Aqueon charcoal filters. In total we lost 3 cichlids all due to the other fish, not sickness per-se. On the advise of an independent fish shop owner, we decided to use the new 10g for more small fish.
And that's where we are!