Never did water changes. Didn't know about it. Had minimal filtration because that was all that was available. Like they say, ignorance is bliss.
Seemed the biggest problems you could have was over feeding, Ick and a heater screwing up and boiling your tank.
How true, My first tank was put together (52" X 15" x 12",,,1 internal corner filter,,a heater and a thermometer) filled with water and in went the usual community stuff (Guppies, neons, algae eaters ect), Then I see an Oscar at the pet shop "is it a peaceful fish"? I ask, "Oh yes" comes the reply, Peaceful!!!! Yes, REST IN PEACEful for my little squad of community fish as they disappear at an alarming rate

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So I get some more Oscars,, These poor fish had the tank cleaned out every week, This included them being taken out the tank, Put into an old baby bath full of clean tap water, Tank, Filter scrubbed clean and the fish put back in to the tank now full with,,,Yes you guessed TAP water.
How on earth these poor fish survived I'll never know.
I've learned a little since then,,,,honest
