Ngā āhuatanga
1 He pai te mahi rerehua.He rereke te ahua o te karaehe wera i runga i te tono.Ka taea te whakaputa i te karaehe ahua o te koo, te karaehe ahua porotakaro, te ahua "S", te ahua "Z", te ahua "U", me etahi atu ahua koretake.Ka whakanui tenei i te tono karaihe i roto i nga taiao rereke, he pai te mahi aesthetics.
2 He pai ki te hanga me te maakete a-iwi.I roto i te hanga, ka whakamahia tika i roto i te tono hanganga, ka taea e te karaihe kopiko te awhina ki te whakaora i te utu.I te wa e whakamahia ana i te maakete a-iwi, he ataahua te karaehe piko wera me te ahua motuhake, penei i nga aquariums, ka whakarei ake i te ataahua i roto i te ruuma.
3 He pai ake te parenga hau.Ko te karaehe kopiko he pai ake te pehanga hau i era atu momo karaihe.