14 P ISSN: 2086 - 4604 E ISSN: 2549 - 8819 © 2018 Departemen Biologi FMIPA Unhas Potensi Pemberian Pakan Cacing Tanah Lumbricus rubellus Terhadap Warna Pada Ikan Guppy Poecilia reticulata Zohra Hasyim, Ambeng, Irma Andriani, Andi Rismayani Saputri Departemen Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Hasanuddin, Makassar 90245 email: zohra.hasyim@gmail.com Abstrak Penelitian “Potensi Pemberian Pakan Cacing Tanah Lumbricus rubellus Terhadap Warna pada Ikan Guppy Poecilia reticulata”, yang bertujuan untuk mengetahui pengaruh penambahan pakan tambahan cacing tanah Lumbricus rubellus pada pakan ikan hias guppy Poecilia reticulata terhadap perubahan warna. Penelitian ini dilakukan selama satu bulan dengan 3 perlakuan pemberian pakan yaitu W0 (pemberian tepung Ikan tanpa pemberian tepung Cacing tanah Lumbricus rubellus), W1 (tepung Cacing tanah Lumbricus rubellus dan tepung Ikan) dan W2 (tepung Cacing tanah Lumbricus rubellus). Akuarium yang disediakan sebanyak 3 unit dengan ukuran 12 cm x 20 cm x 20 cm. Ikan uji (± 3 cm), dibeli dari tempat budidaya dan di aklimatisasi selanjutnya ditabur sebanyak 3 ekor per akuarium. Pemberian pakan sebanyak 3% dari berat ikan uji dan dilakukan dua kali sehari. Parameter kualitas air yang diukur adalah suhu, pH dan oksigen terlarut (DO). Analisis data dengan rumus hendry dan grime (1993). Hasil penelitian menunjukkan bahwa terjadi eningkatan karatenoid pada ikan guppy Poecilia reticulata pada setiap perlakuan yaitu perlakuan W0, W1 dan W2, dan peningkatan karatenoid tertinggi terjadi pada perlakuan W2. Kata kunci: Pakan, Poecilia reticulata, Lumbricus rubellus, perubahan warna Potention of Giving Earth-Worm Food Lumbricus rubellus Toward Colour Alteration To The Guppy Poecilia reticulata Abstract The research entitled “Potention of Giving Earth-Worm Food Lumbricus rubellus Toward Colour Alteration to The Guppy Fish Poecilia reticulata” was aimed to find the influence of earth-worm Lumbricus rubellus extra increment toward colour alteration to the guppy fish Poecilia reticulata. The research was conducted for a month using three kind treatments of food, those were W0 (food composed of fish meal without earth-worm, Lumbricus rubellus), W1 (composed of fish meal with earth-worm Lumbricus rubellus), and W2 (composed of earth-worm Lumbricus rubellus without fish meal). The available aquariums were 3 units with sized 12cm x 20cm x 20 cm. The cultivated test fish (± 3 cm) were acclimated for 2 days. Three test fish placed into three experiment aquarium each. Formulation of food intake was 3% based on the weight of the fish and was given 2 times a day. The parameter of water quality measured in this research were temperature, pH, and dissolved oxygen (DO). Data analysis using henry and grime formula (1993). The result of the research showed that there was an increasing of caratenoid in guppy fish Poecilia reticulata for each treatment of W0, W1 and W2 treatments. The high carotenoid increasing occured in W2. Keywords: Food, Poecilia reticulata, Lumbricus rubellus, colour alteration Jurnal Ilmu Alam dan Lingkungan 9 (17) (2018) 14 - 21 Jurnal Ilmu Alam dan Lingkungan http://journal.unhas.ac.id