Thallium is a toxic element that can be introduced into the aquarium via inferior potassium salts, vegetable feed and cement. Values above 10 µg/l (0,26 US.liq.gal.)should be avoided. Thallium can easily be removed from the system via iron adsorbers such as Powerphos, Phos 0.04 or CoralBalance.
Addition is not necessary.
Value too high:
Partial water change, filtration via zeolite and Powerphos.
Value too low:
No dosing provided!
|Standard value||0-2 µg/l (0,26 US.liq.gal.)|
|Skill level||Red, only for experienced aquarists|
|Source||Salt, trace mixtures, cement|
The addition of thallium is not intended.