Hmmm the mixing is an interesting thought but I’ve seen a lot of people keep multiple species? I think I may try adding more btas (after I get the par meter to check lights) to give the clowns more options. At this point I’m thinking they may be the culprits bc everything else seems good. I think I’m down to only the rainbow bta now, although I think a 2nd smaller one is still around- saw it a few days ago, and there’s a green bta or lta I can see tips of tentacles sometimes. So next question that we didn’t touch on before that I just considered- I typically temp acclimate my nems and then do a 30 min drip, dump half the water and do another 15 min before introducing them to my tank. Could that process causes a very slow (weeks to months long) demise- could that be the problem? I know some people are big on the drip method but I’ve also read where a lot of you just temp acclimate and place in the tank? Is that successful? Idk if my red that I had for years was wild or captive. The bigger rainbow I have now is captive. Not sure about the 2 others.