Sick fish, need advice

[racerx]

I have a 29 gallon freshwater tank that I keep right around 76' and have had good luck with a few fish being 4yrs. old. My problem is that I've lost 2 tetras and a placastumus and a few of the fish have what appear to be white spots on them and most of them hang at the bottom and are not very active. I bought a koi,2 tetras, & a algae eater. My fiance brought home another koi and things were fine for about a week ,then this happened. I change filters monthly and have a bubbler bar in the tank ,any help would be appreciated.

 

[tstenback]

By white spots are we talking about spots that look like salt (ICH) or discoloration of the skin ,usually yellowish/white, (velvet) or are the spots fuzzy (fungus) or none of the above? The answer will help those here to help you better.

 

[Salt Freak]

Slowly raise the tempature to 86 degrees and put a ich treatment. the heat will speed up the ich process and ich can't live in those hi of tempatures.

 

[Angry_Platy]

Its unusual for ich to kill fish, unless they had it so bad that their gill function totally shutdown. For ich treatemnts to work you need to get onto it straight away....