dc.description.abstract | Redfin fish is one of an interesting ornamental fish. Intensive cultivation
can be done by optimizing the stocking density. This reasearch aims to determine
the effect of stocking density of redfin fish (E. frenatum), with water recirculation
system maintenance media on the growth and survival rate, and determine the
optimum stocking density with an average length is 5,04 cm and an average
weight is 1,01 gram. Redfin are used as much as 162 fishes and maintenance
container used are 9 aquariums with size 40 cm x 20 cm x 20 cm and the volume
water are 12 liters each aquarium have, which are arranged in a recirculation
system and is equipped with a filter and sump basin tubular. The parameters
observed during 40 days of observation are: survival and growth rate, and the
daily of length and weight growth. During the observed, fish are given an artificial
feed as much as 5% of body weight per day. Feeding frequency are 3 times a day
which are at 09.00, 13.00, and 17.00 WIB. The method used is Completely
Randomized Design with the treatment of stocking density 1 fish/liter (P1), 3
fish/2liter (P2), and 2 fish/liter (P3). Treatment P1 shows the best of daily length
and weight growth. Treatment P3 shows the lowest of daily length and weight
growth. Stocking density significantly affected on the daily length and weight
growth rate, but did not significantly affect on survival rate. Tukey result has
showed that the treatment P2 dan P3 significantly different from P1. | en_US |