Another thing:

Grass Zone: 20% Tropius 20% Stribra 10% Kondria 10% Tropius 10% Tauros 10% Sandshrew, 5% Stribra 5% Tauros 4% Bakurge 4% Scyther 1% Bakurge 1% Scyther

Pond: 60% Corphish 30% Cascadet 5% Corphish 4% Cascadet 1% Lapras

Ice Zone: 20% Tundrolf 20% Polara 10% Skarmory 10% Huskii 10% Tundrolf 10% Gargoth 5% Polara 5% Skarmory 4% Absol 4% Gargoth 1% Absol 1% Iglonia

Marsh Zone: 20% Smallard 20% Meowth 10% Seviper 10% Zangoose 10% Smallard 10% Tangela 5% Meowth 5% Mallarge 4% Seviper 4% Zangoose 1% Persian 1% Tangela

Rock Smash: 60% Inflare 30% Inflare 5% Dunsparce 4% Inflare 1% Inflare
Is that the Marsh Zone? If it is it'd be great if you added way more grass and a few puddles here and there.