Odo & the T-1000

I’m assuming that the Special Effects processes were similar for the T-1000 in T2 and Odo in DS9. If I’m wrong please tell me. Does anyone know if those specific effects are mega-expensive to produce? I’m just psyched over the reveal in last week’s Sarah Connor Chronicles episode of the T-1000 model in L.A. Odo’s effect scenes were pretty frequent in DS9’s duration, I hope the same goes for the T-1000 in S.C. Chronicles. I’m looking forward to seeing mercury woman in action.