Hmm i tried to do a diy water dip but it did not work. Saw it on youtube that one of the reefer user a pet dripper and it work perfectly. Hmm... Still dunno what when wrong... I just use a plastic ketcup bottle where you often saw it at restruant. Filled it with water and put upside down just above the water surface. But it just dun drip! Any gurus can help advise? Thanks