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New tank tds shot up

DavidW

Member
Joined
1 Jul 2016
Messages
327
Location
East Sussex
Hi just wondering if this is normal. Yesterday i setup a CRB it's 35 litre I've added cal aqua black earth and a few pieces of wood. I added ro water re-minaralised to 150 tds. This morning I checked the tds and it's shot up to 280. Is this normal?
Thanks
 
cal aqua black earth

http://calaqualabs.com/blackearthpremium/
Special characteristics of Black Earth Premium:
1) Highly fertile
Black Earth Premium is formulated for maximum fertility. Made from natural fertile soil rich in humic acids, it contains a large amount of essential plant nutrients such as Nitrogen, Potassium, Phosphorous, and trace elements such as calcium, magnesium, iron, and manganese.

I have no personal experience with this substrate.. But reading this.. Could be extra the added calcium and magnesium leaching. :)
 
In the end it always does when water changes are performed.. :) At least if you do not have any that takes long and keeps disolving like for ever e.g. a soft limestone etc.
 
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