Rasboras dying and ram has white eye! help!!!
I have a fully cycled 20 gallon long tank that is lightly planted with large rocks and sand. I put 2 bolivian rams in first for almost 2 weeks and when i was happy they were getting along an d eating i added more fish. I put in 6 harlequin rasboras and then 2 coolie loaches. One ram got a cloudy eye so i did more water changes but my water is fine nitrates ok nitrites 0 amonia 0. One rasbora was a bit pale and died 2 ays after i got them, then one got a red dot by its side and died the next day and today i found one dead that seemed totally fine. The ram with the white eye eats swims and seems totally fine. Any ideas what going on? ANy help would be great! Thanks