Apflanzeneh@webtv.net wrote: > > (sorry I pushed send.) > > My roof is ashphalt shingles, although 27 years old , this worries me > this is an oil based product. Am I out of luck ? > > Steve in not so rainy Vancouver (this year) > >Mine's 12 year old asphalt shingles, and I've had no problem. I've bred and raised a dozen apistos, plus West Africans with no weird results. If you're storing the water, keep it covered for dust and maybe circulate it. I'd drop an airstone in, although I usually forget to. - -Gary