I will be on vacation twice in the next few months and was wondering if there are any good recommendations for a slow release feeder. I have various tetras, two plecos, three snails, and khuli loaches. My first trip will be for 9 days and the second will be for a month. I will have my son in the house, but at 19 years old I am thinking I would rather be safe than sorry if he forgets to feed them. I was looking at reviews on Amazon, but so many good reviews are mixed with really bad reviews, and I don't know what to think about it. Thanks!