here is the recommended pump:
The SP 3000 dosing pump is an economic peristaltic pump for pumping small volumes of water. It can be used with bypass filters like the Nitratereductor and the Calciumreactor, and also to top up evaporated water combined with an aquaniveau and the Kalkwasserreactor.
A further application is the automatic dosing of fertilizers and minerals. In freshwater aquariums, the iron fertilizer ferreal can be added daily. In coral reef aquariums, the addition of calcium and trace elements (products of the Reef Life series) can be automated using the SP 3000.
The pump is supplied a long life Santoprenea hose.
Max. capacity - fixed : 31/h / 0.8gph
Max. head : 10m / 30ft - 1 bar /14.5psi
Motor : Synchronous 20rpm
Power consumption : 4.5
Pump Hose : Santoprene
email me at
mikeg31781@yahoo.com for where to send the frag