libertybelle
Aquarium Advice Addict
Your ammonia level was most likely caused from your dead fish. sorry you lost him. Imo! This is not badly over stocked. These angels are still very small. Test your water after water change see where your at now that the fish is out.
Could be, except they were dealing with ammonia problems before the fish died. But yes, certainly the dead fish in the tank didn't help things in that department. Looks like one of the smaller ones died? If you still have the larger one too it may start to beat up on the little one remaining now that it doesn't have to split its attention between the two so keep an eye out for that.
I may have lost track over the course of this thread, what is currently left in this tank besides the angels? Or now is it the two angels left and cories?
Regardless, 50% water change with prime now is a good place to start and if you are expecting ammonia to be neutralized by prime you'll need to be doing water changes no more than 24 hours apart which is how long prime can detoxify ammonia.