Seasonal changes often seem to induce breeding.
For some species, spring rains, and the slight change in water parameters those rains evoke may be significant.
My Parachromis managuense always seemed to want to spawn around certain coinciding holidays
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which coincided with with pagan and indigeonus tribal holidays of the past like the summer solstice.
So I would do tons of extra water changes to induce spawning, maybe 50% per day, with slighhtly cooler water.
And I found if I added rain water with its lower pH, and mineral content to the tap water, it seemed to fire them up
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Here in Panama, spring rains induce termites to migrate, which produced gluts of food falling into the rivers.
As they do, termite wings and up floating all over the water surface, and cichlids gorge on them
For others the dry season and its higher concentration of nutrients, and the hatching out of different types insect larvae see to trigger.
Andinoacara usually spawn in the dry season beteen Dec and March, in nature, and follow that same pattern in my tanks.
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Can't say I'm savy enough to know which seasonal change induces what species to do when, but switching water change practices to simulate cool rains, and purer waters are sometimes helpful.