ok i have had the same 100 gallon tank for about 6 years now and have transplanted it from house to house without any problems... i just moved about a week ago and NOW i have a problem...i hooked up everything and for some reason my water is a brown-ish tea color... i searched the forums and posts and havent found anything that can help me...its not the logs...its not the poo from under the gravel cause i washed about 90% of it out when i moved the tank... what could possibly be causing this water problem... i have 2 sponge filters that i have used for the last few years with no problem so i dont believe that that is the reason for the water issue... can anybody please give me some idea as to how i can remedy this?