"They've got highly skilled backs and good players in the right positions. They definitely have a lot of potential and they'll be a threat down the competition."
Prime said his players did not execute their moves well and made errors on the wrong side of the field.
Fortunately, he said the opposition could not capitalise on the Tigers' mistakes.
Prime singled out props Elai George and William Wiki, plus lock Herewini Selwyn and No6 Wilson Hona as standout players in Saturday's match.
George bagged two tries while others came from Herewini, Te Tuhi Tipene and Jimmy Tauranga.
In the other matches, Takahiwai Warriors defeated Portland Panthers 42-14 in Portland and Northern Wairoa Bulls won 38-16 against Horahora Broncos.
Rugby League Northland Scott Electrical Premiership round 3 scores:
Takahiwai Warriors 42 v Portland Panthers 14; Horahora Broncos 16 v Northern Wairoa Bulls 38; Moerewa Tigers 34 v Otangarei Knights 20; Hokianga - bye