I started up a new 35gal tank about 2 months ago. Currently have 10 cardinal tetras and about 20 cherry shrimp that are all doing great. I had added 4 albino long fin bristlnose and one by one they all died in under two weeks. All my water parameters are good and the tetras and shrimp are doing fine. Thought maybe it was just the breeder I got the batch from so just ordered 8 more from a different breeder. Have had them for two days and have already lost 4 of them. It's a 35g planted tank with fine and medium sized black substrate. The first batch didn't seem to be eating much. I've tried vegetables, algae wafers and bug bites. This second batch seems to eating but they're dying off quicker than the first did. Any thoughts on what could be causing this?