Planted Tank Guru
Join Date: Dec 2017
Location: Elk Grove, California
Yes, lower organic/bacterial load increases the frequency of natural spawning behavior. Is that something those who have kept cichlids in aquaria are surprised at? I think not, it signify's healthy cichlid behavior. When a cichlid ( I have raised discus for 15 years, very close to an angel-fish), is healthy it is induced to express reproductive behavior which in turn increases behavior of aggression towards con-specifics. These researchers act like they have just discovered what aquarists who have raised cichlids for years have known for decades.
In reality, it shows how under-researched fish in the aquarium are. It is really quite sad and, in many ways, is why some "myths" of fish-keeping continue to make the rounds.... repeated as "mantras" when they have no actually bearing to the truth.
We need a merging of minds... the practical experience of aquarists in conjunction with the biological/chemical/ diagnostic methods of science to put the hobby forward when it comes to fish-keeping.