I dont have a set schedule, but I shoot to get around 30%-40% per weeks at least. I was feeding them like 4 servings throughout the day. Dropped it down to one. Those water changes look to have been in vain though. Before I went to bed last night I found 2 more dead. Just woke up and found 1 more dead, and one laying on its side, its swimming sideways with no control and keeps going headfirst into the sand..... I have a calculus exam today so they will have to wait until I return. 5 fish left. Added some salt and put in a bubble want as well as a powerhead spewing bubbles everywhere until I can do more.