Ideal Temperature for Goldfish Setups...

[Osage_Winter]

Pictus cats should leave them alone. Cories wouldn't bother them, otos and bristlenose would be compatible. These will require a heater for the times the temperature drops below 24 deg C .... whatever that converts to in F.

Hillstream loaches wouldn't need a heater, but you wouldn't want your water to stay warm for extended periods ... eg heat waves.

Thank you for this info.

Research each fish type... google, books, forums etc and see what will work for you.

I will do that -- but I indeed wanted to come to this forum first as folks here have helped me in the past, and I thought the idea of a public forum was to ask questions such as this, so more knowledgeable folks (hopefully) could guide us in the right direction...