hi michael, yeah the calcium thing has been on my mind ,as i use tap water , prepare w/ salt ,airstone,dechlorinator heat to 24.5c and add ..my house is nearly 100yrs old, and my lfs told me to dose calcium and use a phosphate sponge(ceramic medium in ladies stocking in waterflow in tank) to keep down the algae . well my belief is and dont quote me on this but phosphate depreciates calcium ??!!, thats what i got told from my lfs .. for the last 12mths ive been taking my water twice a month for testing and i get all okay but they always comment on the little bit of NH4 and phosphates .. i do my best to try not to overfeed as i use a syringe (no needle) to feed and they always eat it all , everything else seems to be okay
