Maskulinisasi Ikan Guppy (Poecilia Reticulata) Melalui Metode Perendaman Induk Menggunakan Air Kelapa Dengan Konsentrasi Berbeda

This study was conducted to analyse the use of coconut water doses achieve a higher percentage males in guppy breeding and how it affects survival fry. The search took place Mertoyudan, Magelang district between November 2021 January 2022. research plan completely randomized design with 4 treatments replicates. Treatments this were immersed gravid females at 0%; 50%; 55%; 60% solution concentration water. data analysed using One Way ANOVA followed by Least Significant Difference test. Results from analysis showed that increased male fry addition used. highest 87.7% achieved immersion treatment 100% rate.Keywords : water, (Poecilia reticulata), guppies female,