I used 1 cap full of Revive with about 750ml of tank water. First spider, mini star fish, pods and worms fell off after 5-10 minutes dip. I siphoned them out to a small container with tank water trying to see what they were. The spider looked stressful but still moving, the rest looked dead. The corals were dipped for another 5-10 minutes I think. I put the zoa in a small contain with tank water until this morning.