Nearly 100 cannabis plants found in SA

South Australian police say they've uncovered hydroponic cannabis crops in two Adelaide homes.

Almost 100 cannabis plants in two hydroponically-grown crops have been uncovered by police during raids in suburban Adelaide.

Detectives acting on a tip found 42 plants and hydroponic equipment in a house at Netley and 54 plants at a Warradale house, SA police say.

There were no arrests, but police are trying to establish if the houses are linked.