Ilford's 2000RT Fixer/Replenisher is a non-hardening rapid fixer, it must not be used with fix hardeners.
The 2000RT fixer is compatible with all methods of silver recovery but for maximum efficiency electrolytic methods are recommended as the treated fixer can be recycled or reused.
It is primaraly used in rotary processor developing..
Reviews Ilford 2000 RT Fixer Replenisher (Liquid) for Black & White Paper - 5 Liters