Effects of zeolite, diatomite, and leonardite as feed additives on the growth performance of guppy (Poecilia reticulata) fry

This study examined how possible feed additions, such as zeolite, diatomite, and leonardite, affected aquarium fish growth and reproduction. The meals of the guppy (Poecilia reticulata) fry were supplemented with 4% zeolite, leonardite, and diatomite. Weight increase (g), specific growth rate (SGR, %), and survival rate (%) showed statistically significant differences (p<0.05) after 60 days, but feed conversion ratio (FCR) showed no statistically significant changes (p>0.05). The results of this study indicate that adding natural zeolite, leonardite, and diatomite to fish diets has beneficial effects on growth parameters, feed utilization, and survival rate, suggesting that these materials can be used as natural feed additives in aquarium fish culture. The water quality parameters measured at the start and at the end of the experiment did not differ significantly (p>0.05).