Practical aquaponics provides a range of backup equipment aquaponic systems by a number of different manufacturers. practical aquaponics and integrated aquaculture technology. have a question? call backup pump - 12 v 500 gph. $55.00 (aud) more info. backup pump - with hose and fittings. $73.90 (aud) more info.. Battery backup in aquaponics. posted by ecofilms on mar 10, 2011 in aquaponics, system designs were looking at the fish and one of the children pulled the power cord out of the mains that was supplying the main pump in the aquaponics system. no one noticed that the fish had all died until the next morning..