Hey people...I know you are not animal or fish doctors but I'm watching my little aqautic friend dying on me and hoping you guys might know some tips. He is a male beta (siamese fighting fish) he and a couple of feeder fish (algea eaters) were living in a ten gallon tank without a problem then everyone started getting sick when I introduced a new filter pump into their world. The feeder fish (small) died off first and the beta started to lose color. So I changed the water in the tank and the betas condition seemed to improve for a couple of days. The second feeder fish died and today I came home to find the beta all curled up on the bottom of the tank. He was clearly using all his available energy to reach the surface for air but did not have the strenght to go the nine or so inch distance. I removed him plus some of his same water into a shallow holding tank so he could get air. This has worked so far. I am now setting up a second tank with new water which is coming up to tank temp as I write this. I'm hoping that if there is a contaminant in the old water I will have eliminated it and thus save his life. I am just hoping some of you may know some other life saving tricks which might help this little friend of mine. He is very special to me for sentimental reasons and if I have to be up all night with the little guy...So be it!!! If you have any ideas or knowledge in this area PLEASE HELP!