Can two haddonis touch eachother?

[DrDNA]

If you have two haddonis in the same tank, can one sting and kill or injure the other? Or, do they not sting members of their own species? I have a blue haddoni and was thinking about another one but of a different color (green or red, if I can ever find one).

Thanks!

 

[DJM32189]

What does the mouth of your haddoni appear like on a daily basis?

 

[DrDNA]

don't know, just added it a couple days ago. today it was mostly closed, but sometimes it would act like it was "licking" its tentacles by folding them over the mouth and opening the mouth up a bit.