I am at college right now and I have a small fishtank and I have had to leave for three days to come back home for the last two weekends. I have put the weekend feeder tablets in my tank and my fish seem to be doing fine, but I have to go away this coming weekend also. Are the tablets going to have a long term effect? They look like they have almost no protein while the normal food I give them has 30-40% protein. My lid doesn't allow for a battery powered feeder either. Any imput or suggestions would be helpful. Thanks!