I have 2 ottos and a Syndontis in my 10 gallon planted tank. For the past couple of weeks i have had them.I have been finding it hard to know when it is a good time to feed them. For the past weeks I have been feeding them 1 algae disk every two days. Is that enough or too much (there is some algae in the tank but they dont seem to like it). Also i need to know were it's a good place to drop the disks. Also lastley I need to know what another good food choice is to give my fish some varity. Any advice will help alot.