Oil removal film device and coral ecological breeding system

The utility model discloses an oil removal film device and a coral ecological breeding system, and the oil removal film device comprises a control shell, a pump and an algae attachment plate; the control shell is arranged at the upper end of the breeding tank and provided with an extension shell extending below the working water level of the breeding tank, the extension shell is provided with a first water inlet, a second water inlet and a water outlet, a first water flow channel is formed between the first water inlet and the water outlet, and a part of the second water inlet is arranged above the working water level. The other part of the second water inlet is arranged below the working water level; the pump is arranged in the extension shell and used for enabling water flow to flow to the water outlet from the first water inlet and the second water inlet; and the algae attachment plate is arranged in the first water flow channel. According to the technical scheme, the pump and the algae attachment plate ar