I believe it would be really useful if we add the breeding and hatching information or at least provide a link to the breeding guide. A lot of people are struggling, and yes if they read the forums they wouldn't be asking but at the same time I've never played a game where reading the forums is mandatory for you to understand it. Just giving my two pennies.
HP EV
Island 4 surf in front to icefall cave
Marill =2hp
Slowpoke=1hp
watch Psyduck
Sp. defense
Island 1 surf
Tentacool=1spd
Tentacruel=2spd
watch Feebas (for now)