Hey everyone! I usually talk about my bettas that I keep up at college with me here, but I now have a question about my two goldfish (Shamrock and Jazz) that are at home. Though they are both carnival fish they are approximately 5 years old and have grown big, despite the notorious knowledge of carnival fish not lasting very long. We lost a third goldie about two years ago, so we're left with the two.
I'm really the only one who will take care of them: aside from feeding, when I'm home it is always my chore to do a full clean of their 20 gal tank. I know, its small, but its the best we can do for now. The tank is filtered, but of course still gets dirty. Sometimes they go over 6 weeks without a tank cleaning while I'm at school.
I am going to take summer classes and I was wondering if I could possibly invest in snails or another bottom feeder fish to pop in there with them to eat up the algae and anything gross. I will rarely be home all summer and I would like to know they are being taken care of.
MY Question: Is that what species are safe for goldies that would eat some gross stuff? Or would some device or cleaning thing that we could buy be more advisable? Let me know :3