Dmorty217
Saltwater Addict
Rather than use eggcrate as a physical barrier, I use it as a large, scary thing that keeps the established fish away from the new fish - the established fish is scared of the eggcrate so it won't go near, and the new fish will tend to stay near the scary item for protection.
I have not had a lot of success using egg crate to section off a tank - a determined fish will usually find a way around it, then the two are isolated together, which is worse.
Agreed, have 2 scribbleds that were doing this to one another... now they are in separate tanks but the one is cover in the worse case of lymph I have ever seen in person. Going to start hydrogen peroxide treatment this weekend for it.