Fish dying

[bumblebat]

Also, feeding bloodworms more than once or twice a week can be dangerous. They tend to carry a bacteria that causes bloat and they're not nutritionally viable as a staple diet. I would recommend looking in to getting New Life Spectrum flakes w/ garlic online. It's the best food you can get without just making it yourself, which can get messy and expensive (I do both.)
Bloodworms and brineshrimp should be supplemental at most.