So I was wondering if anyone could help me out. I have an 80 gallon tank, with 4 oscars, a motoro stingray, a green panaque, a rhino pleco and a large bala shark. There is also a large piece of driftwood (no clue what kind of wood it is, I got it at one of the aquariums here). So my issue is that the water has gone a yellow color, but the fish dont seem to mind, is this because of tannins or is there a filtration method to clear up the water? Right now I have two tetra whisper internal power filters 40i running, but I had been thinking of a canister filter as there is a lot of waste. Any suggestions would be much appreciated. Thanks
ps. theres a quick picture so you can get an idea.

ps. theres a quick picture so you can get an idea.

