Thallium
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!
| Variety | transition metal |
|---|---|
| Standard value | 0-2 µg/l (0,26 US.liq.gal.) |
| Skill level | Red, only for experienced aquarists |
| Source | Salt, trace mixtures, cement |
| Available | none |
| Importance 1–6 | 1 |
| Detection quality | medium |
Balling Light:
The addition of thallium is not intended.