Backyard Aquaponics
A place to discuss aquaponics

wrong kind of lime OB - That stuff goes best with Coca Leaves - Wish we could grow them over here!

Thanks for all the suggestions. I'll go sit under my lime tree after work tommorrow with a bottle of Tequila, lick my moustache and give it some thought!

New concrete, how does it effect the PH. Up or Down.

Tends to drag it to 8.0 or more.....

Bugger was hoping it would drag down.

Lime is essentially Calcium Carbonate.... just like shells etc... a pH buffering agent....

Definitely wont go the other way....

From memory, I think C1 said there was a way to "condition" new concrete to minimise the effect... maybe PM him... or coat it with Sikaflex...

be careful when you define LIME rupert.

there are atleast THREE common definitions, and they run from clacium carbonate CaCO3 to quicklime CaO with VERY different properties

Granted.... ... you know what I mean.....

I do, but i'd hate to see a newbie put quick or slaked lime into their system

Fair enough.... a timely warning...

you know that soapy feeling you get on your hands when you play with fresh mixed concrete? the feeling of the fat being turned into soap that aint buffering to 7.4

mmmm, fish soap

No worries roper, i'm just paranoid about a newbie getting it wrong in a big way.

OK I had my salty lime and Tequila.

I like the boat hull idea and I'll keep an eye out.

I am also building a cistern to capture rain water at the moment and I plan to seal it on the inside with a "drinking water safe" sealer. Would it be safe to assume most of these sealers would not be harmful in a grow system?

I have sealed my concrete counter-tops with bees wax and a propane torch, they seem to be holding up quite well and food safe, and cheap and....

Yay the boaties, thats why i ended up here. been eyeing out dingies that have no useful motor on them, might just do it for the fun and the laugh of AP

Hey All, Im new to this AP thing but want to get something stared up and in the past have had some expierence working on a hydroponic farm, just a quick question about grow beds. I have a bay-marie made from stainless steel as a grow bed and was hoping to keep yabbies in two bath tubs. Anywho I was wondering if steel is likely to effect the nutrient in the water. I understand the chemicals in hydroponics made steel a inviable grow bed material. Any information would be greatly appriciated.
Cheers
Ell

Oh no 2 Ell's