Now in addition to my pond thats in the works i also have a 20H aquarium that i was hoping to stock with one convict and one dwarf pike (C. Regani hopefully), Is this going to be a problem? Now another thing that might be a concern to both my pond and my aquarium that i really have not given much thought to is my water source, all our water comes from a cistern. Now I'm not worried about rainwater, but will my cistern (looks like galvanized steel)leech anything harmful to fish? And the rainwater runs over our roof which gives the water a slight asphalt taste to it, is this going to be a concern? My family does alot of fishing and i was wondering if i could use salmon eggs as a occasional treat (Salmon eggs directly from the salmon, not store bought for use as bait). I appreciate advice and suggestions 
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