An apparatus includes a tank having a body of water, the tank having a submerged plant material zone having plant material submerged within the body of water. The apparatus also includes an irrigated plant material platform, including additional plant material which is separated from the submerged plant material. The apparatus further includes an animal raising zone in fluid communication with at least a portion of the body of water, the animal raising zone separated from the submerged plant material zone by a porous filter. The apparatus includes a tank influent stream for passing water through the plant material zone and subsequently through the animal raising zone. The system includes a recycle loop having a pump disposed within the animal raising zone for pumping a waste product from the animal raising zone to the irrigated plant material platform. The animal raising zone may be a fish raising zone.

An apparatus includes a tank having a body of water, the tank having a submerged plant material zone having plant material submerged within the body of water. The apparatus also includes an irrigated plant material platform, including additional plant material which is separated from the submerged plant material. The apparatus further includes an animal raising zone in fluid communication with at least a portion of the body of water, the animal raising zone separated from the submerged plant material zone by a porous filter. The apparatus includes a tank influent stream for passing water through the plant material zone and subsequently through the animal raising zone. The system includes a recycle loop having a pump disposed within the animal raising zone for pumping a waste product from the animal raising zone to the irrigated plant material platform. The animal raising zone may be a fish raising zone.

A lighting controller that may be utilized with aquariums is provided. The light controller provides easy control over various lighting fixtures comprising various light sources. A user may program various lighting characteristics and effects such as the turn on or turn off date and time, the color, the brightness, the power supplied to the lighting fixtures via different user interfaces. The user programmed lighting characteristics may be wirelessly delivered to the controller over a wireless access point.

A lighting controller that may be utilized with aquariums is provided. The light controller provides easy control over various lighting fixtures comprising various light sources. A user may program various lighting characteristics and effects such as the turn on or turn off date and time, the color, the brightness, the power supplied to the lighting fixtures via different user interfaces. The user programmed lighting characteristics may be wirelessly delivered to the controller over a wireless access point.

A frozen food aquarium feeder controls the melting and dispersion of frozen aquarium food. The feeder includes a rotatable first cylindrical column having a floor/ceiling including a set of passages and a rotatable second cylindrical column having a ceiling/floor including a matching set of passages. The cylindrical columns are assembled with an interference fit to a round bracket allowing each cylindrical column to be rotated with respect to the round bracket. The floor/ceiling of the first cylindrical column may reside against the ceiling/floor of the lower column, and the cylindrical columns may be positioned to provide a desired overlap between the passages to control the passage of melted food from the first cylindrical column to the second cylindrical column. The feeder may be positioned with the first cylindrical column extending above the aquarium water line, and ports in walls of the cylindrical columns may be positioned to intercept aquarium currents.

A frozen food aquarium feeder controls the melting and dispersion of frozen aquarium food. The feeder includes a rotatable first cylindrical column having a floor/ceiling including a set of passages and a rotatable second cylindrical column having a ceiling/floor including a matching set of passages. The cylindrical columns are assembled with an interference fit to a round bracket allowing each cylindrical column to be rotated with respect to the round bracket. The floor/ceiling of the first cylindrical column may reside against the ceiling/floor of the lower column, and the cylindrical columns may be positioned to provide a desired overlap between the passages to control the passage of melted food from the first cylindrical column to the second cylindrical column. The feeder may be positioned with the first cylindrical column extending above the aquarium water line, and ports in walls of the cylindrical columns may be positioned to intercept aquarium currents.

The present disclosure provides an aquaculture method for preventing tilapia fatty liver disease. The aquaculture method includes steps of: dropping tilapia fries in an aquaculture pond for feed-based aquaculture for 28-31 days, fasting and refeeding, and conducting the feed-based aquaculture until harvest. Through the aquaculture method provided by the present disclosure, lipid increase in hepatocytes is reduced significantly, and glutamic-pyruvic transaminase (GPT), glutamic-oxal(o)acetic transaminase (GOT), lactic dehydrogenase (LDH), and alkaline phosphatase (AKP) show a significant decrease in activity. Thus, the aquaculture method achieves an effective the effect of control the nutritional fatty liver disease in tilapia aquaculture.

Provided is a method for artificial rearing of porcupine pufferfish fries in indoor cement ponds. The method includes the following steps: indoor cement pond preparation, release hatched larvae into the indoor cement pond, feed and manage the larvae at different sub-stages of the fry rearing stages, water quality management during fry rearing, separate ponding of fries based on size of the fries, and transfer the fries to net cages or outdoor ponds when the fries reach a minimum length. The indoor cement pond preparation step may include disinfecting the pond and regulating the water quality. During the rearing stage, the method may include stimulating anti-stress physiological response of the larvae. The method may transfer fries with an average total length of more than 2.0 cm into net cages or outdoor ponds for aquaculture after 45 days of the rearing stage.

Provided is a method for artificial rearing of porcupine pufferfish fries in indoor cement ponds. The method includes the following steps: indoor cement pond preparation, release hatched larvae into the indoor cement pond, feed and manage the larvae at different sub-stages of the fry rearing stages, water quality management during fry rearing, separate ponding of fries based on size of the fries, and transfer the fries to net cages or outdoor ponds when the fries reach a minimum length. The indoor cement pond preparation step may include disinfecting the pond and regulating the water quality. During the rearing stage, the method may include stimulating anti-stress physiological response of the larvae. The method may transfer fries with an average total length of more than 2.0 cm into net cages or outdoor ponds for aquaculture after 45 days of the rearing stage.

In an illustrative embodiment, a feeder may be comprised of a body, a lid, and a cover. A food sheet may be engaged with an exterior portion of the body and a cover may be positioned over the food sheet, such that the food sheet is positioned between the body and the cover. A lid may be engaged with a terminal end of the body to secure the relative position of the cover with respect to the body.