That’s crazy, I would be devastated if that happened.
I have 8 tanks rn and looking to get more but I also don’t want any low quality shrimp. 3/8 of my tanks are CRS/CBS/PRL. Even tho they look nice in large numbers, I rather keep higher end shrimps like fancy tigers/fishbones/boa. Why did you decide to switch to HOB filters btw? And that’s crazy how a 2.6g is allowing them to breed. You hear everyone say oh water params in small tanks will have huge swings being detrimental to shrimps. But that’s good man, you seem to be doing everything right this time around