Lake Colac fishing Thousands of fish for lake Lake Colac will get more than 5000 additional fish year, thanks to the lake’s consistently high water levels. By Zara CuthbertsonJune 19, 2023 Trout drawing anglers to lake Fishing at Lake Colac has proven popular over the summer after the release of 10,000 rainbow trout through 2021. By Zara CuthbertsonJanuary 31, 2022 Fishers playing the long game with trout bites Lake Colac fishers have so far managed few nibbles from recently released rainbow trout but expect the fish to become more active as temperatures drop. By Billy HigginsMay 12, 2021