thanks crabby for all your feed back : )
i know about the subdivider options but have been stung by it; i thought it would keep fry separate so i spent a whole afternoon separating girls and boys into left and right only to come outside after dinner and find that they could get from one side to another and they were all mixed up again. x(
thought that was worth telling you since you're trying to line breed. you may not be able to tell but the two different groups are almost definitely mixing in the fry saver. sorry to be the bearer of bad news...
that is a kink i would like to work out in my design though
I realise how frustrating it can be when you can't pinpoint what has/is going wrong!
The only red worm I know of is the bloodworm and they are harmless to shrimps, but if you aren't sure what it is then I would discard it to be safe? I don't know where they come from, any bucket left outside seems to get some in over time here??
Fingers crossed the H2O2 treatment does the job!