We had a 1975 Golden Guide to Tropical Fish (still have it) that explained the nitrogen cycle. But like everyone did, we added fish a few at a time, really several every week, to get the good bacteria. The only test we did was pH but my husband was a chemistry major so if the "ideal" pH was 7.3 by goodness it was! Even if we had to add acid or base to "fix" it each test! Poor fishies!I don't get it.
am I the only guy who kept tanks in the 70's that understood that tank had to cycle?
I learned from the local fish store that the tank had to cycle.. tho it wasn't referred to as the nitrogen cycle.. but that bacteria had to be in the tank to cycle the tank. the diff was we used fish to cycle the tank..usually the cheaper fish like live bearers.
I had a ugf run by air pump and a state of the art whisper filter.
we had diatom filters too.
to polish the water.. tho water changes were more once or twice a month.
We changed water, all of 10-20% every 2-3 weeks & were considered by other fish keepers we knew to be "really into our fish".