That Sunday morning, quite a lot of people came to the Jatiluhur-West Java (Jabar) Reservoir area. Various activities are carried out; some visit as tourists; there is a fisherman; there are fish traders, others like Luthfi Bajrie, fish farmers KJA (floating net cages) in this reservoir.
Luthfi, like most other farmers, always rents a motorboat to go to his KJA location in the reservoir area. He also invited TROBOS Aqua to visit his KJA by using the motorboat 'taxi' earlier.
About thirty minutes later, in an area that includes Cibinong Village, Jatiluhur District, Purwakarta Regency, there are at least 3 columns measuring 14x14 meters (m). Which 1 column contains 4 nets each measuring 7x7 m. The net depth is generally about 4-5 m, while the column depth can be up to 14 m. The cages are made of wood, such as bamboo, and the buoys use used drums.
This location is one of a total of three KJA locations that he manages with a total of around 60 KJAs. Luthfi said that in his KJA he applied a polyculture system (more than one commodity or species). Each net he filled with carps and tilapia commodities, while in the deeper net, he culture pangasius.
Many of KJA units he collaborated with other farmers. “Sometimes there are farmers who 'retreat'. So we pull it (KJA), then we will share the results," explained Luthfi.
For fish farming with this polyculture system, it is quite commonly applied by freshwater KJA farmers. And, the most commonly applied, is the commodity carps and tilapia. As for the pangasius commodity, Luthfi also told a lot about the culture he applied.