vacation feeders

Hi guys, I'm going out for 2 weeks starting in mid-August. I have nobody close enough that I can leave feeding to, and after last year's experience and reading, I've decided that, most likely; I'll just leave the fish without food. So, here's where I am: I I've started to ramp up feeding to...

Hi! So I am going on vacation, and we have 2 bettas. I bought some of those block feeders, which says it feeds them for a week. It also says to use in circulated water. I don't have any filtration in the tanks (1 gallon, 1/2 gallon). They won't be fed for about 4 1/2 days. Will they water...