They look closely related to cherry shrimp. When the females are ready to mate they release a pheromone the males fly around the tank looking for them, that was probably why they were so active only if you see the males and females flying around do you need to worry. A ph drop from Co2 doesn’t seem to bother shrimp in my experience; I have dropped the ph by over a point in an hour in a small tank without any noticeable stress to the shrimp
The second picture of crazy Eddies looks like a Bamboo Fan Shrimp/wood shrimp.
Hope the shrimplets survive, cories aren’t the best hunters so some should make it, ottos are shrimplet safe.
The second picture of crazy Eddies looks like a Bamboo Fan Shrimp/wood shrimp.
Hope the shrimplets survive, cories aren’t the best hunters so some should make it, ottos are shrimplet safe.