All my fish have died, im guessing its something to due with the water. i have been getting this brown or redish alge on my sand and brown on the glass. the first and second fish died from ich i looks like. the third and fourth lost color and had black spots on it and then died. i treated the tank for ich and now dk what to do. i am thinking i need to do a large water change and also do like a new good bacteria virus. any help would help. thanks to anyone who helps.
to MFK!