Sake
Aquarium Advice FINatic
- Joined
- Mar 20, 2012
- Messages
- 515
All ich cures are toxic in some way, but it's unlikely to leave the toxins forever. The carbon alone will remove most toxins from the water.
Almost 100% positive there is one that will stain your clear airline tubing/silicone and leech into the water from those for a long time. Maybe not forever but carbon won't remove it from those surfaces, only the water column.