HELP! I will be away for more than a month leaving my poor 15 guppies (3 endler's) and 2 bristlenosed catfish alone at home!!! Yes, my father's friend will be able to come and look something like once in a week... I already have an automatic feeder. Not the best but it's the only way I can feed my fish if I am away so long... I also bought this device that turns the light on and off at certain times.

Now, could my fish survive??? Is there anything I could do to prevent fish death as much as possible?

Please, don't make a comment saying I shouldn't get fish in the first place... already too late!