Normal mob respawn time

[Hawkedge]

I have tried editing the database in mobs_groups respawntime table and i have tried editing the sql and reloaded it into the database but i seem to be doing something wrong.What im trying to do is reduce the spawn time of normal mobs by half.Im not building a server for the public just setting it up for my kids so they can play without having to worry about adult conversations.Any help will be appreciated.

[whasf]

Did you reload the game server after making the changes to the database? Those tables are only read on startup.

[Hawkedge]

Yes i tried everything and still seeing no changes but its ok was just trying to keep them busy.