Angelfish, watertanks and possum poo

[Babba]

Hi all. I have a large colourbond, unused watertank next to the house that receives run off from the roof. I live in the Blue mountains NSW, so I am not so worried about polutants. Heaps of broken down leaves/gumnuts etc get washed down into the tank, I am not that worried about that either - its probably good for the fish. However we have possums by the score storming accross the roof at night - as the neighbours leave out food for them and they eat it on our roof. I am sure their "poo" is left behind to wash into the tank when it rains. It is certainly all over the ground at the front door every morning.

I would REALLY like to use the water from the water tank in my fish room. Would you risk it? Would you filter/treat the water in some way? or am I being too precious about it? The main inhabitants of my tanks are freshwater Angelfish (breeders). What are your thoughts?

[Merrilyn]

I'm pretty sure in the wild a certain amount of animal poop lands in fish water and does no harm, however I think I'd be inclined to filter it through carbon before going in your tank :)

[ILLUSN]

agree with merrilyn you will have lovely soft acidic water , an inline carbon filter will take care of any nasties

[Babba]

Thanks for the replies, that's good news! Actually "scores of possums" is probably an exaggeration, but it can sound like it some nights. I will look into a good carbon filter.