So my sis and me are leaving for 1 week on a trip. Between the 2 of us, we have 4 tanks at home. Two 5gallons, one 3gallons and one 2gallons. They are all heated and filtered. For the duration of the week, my dad will have to take care of our fishies. We usually feed about 6 pellets (they are small pellets) morning and night.
Sooooo my question is: Is it okay if for that week only we feed them once a day 8 pellets in the morning? Because my dad doesn't particularly love fish but he still promised to take care of them so I want to make it as easy and quick for him as possible.
Also, we will make water changes in all the tanks, the night before we leave (we leave early in the morning). I'm not worried at all for the 5 gallons because we always do 1 water change a week and I'm not really worried for my 3 gallon either because I've tried it before and once a week wasn't a problem. But the 2 gallon with the little female worries us a little. Does it matter if we only change it before we leave and then 1 week later?