It's been a while so I thought I'd pop up with an update! At about 3 weeks and 2 days of age, I have between 25-35 healthy active fry that eat tons and are very easy to spot! They average about 1/4 of an inch long now, and I do between 25% and 50% (2-4 gallons worth, with how much of the container is filled) water changes every other day, siphoning up any debris daily.
I want to start doing 75-100% water changes regularly at this point and wanted to know if this would be safe. My water changes are done by first siphoning out water, then replacing it with conditioned, warmed water with a quickly dripping airline over the course of several hours.
I was also going to relocate the tub as well due to some intended remodeling in my room and thought it might be a good time to give it a bit of a careful scrubbing. Would it be alright to transfer the fry into a two gallon container with their old tank water, clean out the tub, then return the fry to it with about 20-25% of old water and drip in clean water to fill it back up? Any advice is welcome!