It’s a 20 long. I have 10 white cloud minnows, a few celestial danios and three pygmy cories currently at summer camp in a bucket with a sponge filter. I am trying to decide if I should leave them there and replace a gallon a day or chuck them back in the tank and watch ammonia like a hawk. I have a RO filter so water changes are no problem but I just can’t decide which approach is best.
And yes, I know this could have all been prevented with better planning. Let’s just stipulate that that ship has sailed.
I would personally recommend picking up some amanos if you haven’t already.
I spent loads of effort balancing my aquarium and it did eventually help some, but then adding amanos really reduced new growth of hair algae. I think they eat it when it is just starting so that it can’t grow mature enough to become resistant/unpalatable to algae eaters.