HI Everyone - I am new here and I have some questions about my fish. I have a 10 gallon tank, for about 6 months now - live plants - and 6 fish - all barbs (Red barbs, Zebra Danios, and an algae eater) – The tank was cycled and I test the water regularly (everything is where it's supposed to be) and I do partial water changes when needed . I have tried twice now to introduce two platties (6 weeks and a partial water change in-between but each time they have died - it seems the only fish that flourish (and they are all VERY healthy and happy) are any types of barbs. And the platties weren't picked on - I did watch that closely, that was a concern. Should I just stick with those types? Any other thoughts, suggestions on what I am doing wrong? To date, the platties are the only fish that have died in my tank.