Biggest mistakes you have made in aquarium keeping?

[Deadeye]

Where to begin…
It wasn’t until I joined this site that I learned to be a good fish keeper, so let’s just say I’ve made a lot of mistakes.
One of them was goldfish and aggressive tropical fish in a tank together (I will add that that led to where I am today).
My worst was my home-bred oranda-shubunkin goldfish, a claw frog, clown pleco, and 2 cories in a 10 gallon tank being fed only brine shrimp and not cleaning the tank for 6 months. No survivors by then.
This did in part lead to my piranha and leporinus tank. Which led to my cichlids. So some good came from my mistakes.

 

[Rtc/tsn]

Was there any room for water? ?

 

[Deadeye]

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Pretty cool stocking for a tank 20x as big.

 

[MultipleTankSyndrome]

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If you have a Reddit account, I'm sure they would love this one.

 

[Backfromthedead]

Poor/lack of quarantine procedures

 

[The Masked Shadow]

Dumb mistakes earlier on. Disrespectping people on here that were trying to help is my main one.

 

[kingthedog]

Putting about 20 small convicts in an uncycled 10 gallon. I thought it was going to be fine because it was temporary but the ammonia spike to 10 ppm fast. Miraculously they all survived.

 

[Krismo962]

If you have a Reddit account, I'm sure they would love this one.

I hate that sub,birthplace of the fish police lmao

 

[eon aquatics]

i also made the mistake of buying a 55 gallon with very little experience keeping smaller tanks
to be honest i probably should have started with a 10 gallon

 

[Neervana]

The biggest mistake I’ve ever made was to probably take a break in fishkeeping. And where I live has powercuts now & then. Not often. But can be decimating to a tank, I’d like to have a backup generator in the near future. But getting back into it is so exciting, got to admit. You can see past mistakes and not to repeat them.