Sodium Thiosulphate Crystals - De-chlorination

Sodium Thiosulphate Crystals - De-chlorination - Seven Fishes

Sodium Thiosulphate Crystals - De-chlorination


Sodium Thiosulphate Pentahydrate Crystals for the removal of chlorine/chloramine from Municipal Water. 

Approximately 2 parts sodium thiosulphate crystals to 1 part chlroine. 

Please be aware that pH affects the effectiveness of the crystals and that can vary dose rates. 

Excess Sodium Thiosulphate will not harm fish. High pH levels can result in excess ammonia being released from chloramines, it is recommended that ammonia removing products such as API AmmoLock be used in conjunction when such scenarios occur. 

  • Courier Service Selections are provided at the end of check-out.

  • For WA Customers, please select Toll Priority for Live Fish orders.

  • In the unfortunate event of a DOA, please message us on with a video in an unopened bag and corpse within water for us to process the claim.

  • Postage costs are not refundable. 

  • Ensure you arrange to receive the package. Deaths resultant from leaving the package unattended for an extended period of time will not be refunded. 

  • Please be aware that marble variety bettas (i.e. Koi, Grizzle, Fancy, etc.) can change pattern and colour during transit as well as over time. We cannot guarantee the pattern will remain the same throughout its lifetime. 

  • Fin nipping during transit is an occurrence that can happen during postage. Please understand this is a risk with long-finned varieties.

  • If there are any issues, please contact us on the day of arrival with images.

  • For more information on shipping policies, please click here.

Sodium Thiosulphate Crystals - De-chlorination