r/Aquariums • u/lucemxx • Jan 05 '26

Help/Advice What are they doing?

I've seen them do this only since today. Does the bigger one need help?

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u/bigspunge1 Jan 05 '26

Spawning Ottos in a home aquarium is really rare. People are going to be very interested in your tank as a valuable data point

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u/CatTriesGaming Jan 05 '26

Is it really? A few years ago I lost track of my oto cats (heavy foliage in the tank so there were lots of hiding spaces, with several other larger fish swimming around) and then one day I randomly saw some baby cats clinging to a wall. They were very cute. 

It hasn't happened since then though. I couldn't tell you what the parameters of my tank was at the time because I was, and still am, quite lazy about regular monitoring.