I have 3 clown loaches that are about 2-4 inches in length. I normally feed them twice a day, a variety of things but I'm going on holidays for 2 weeks and I'm wondering if I could feed them only once a day. It'll be easier for my kids to remember to feed them only once. My kids are not fish people so I'm hoping my 2 tanks will be OK when I return. Because the tanks won't get cleaned for 2 weeks I'm thinking it would be wise to feed only once a day.