I have a 20g tank with just a snail and adf, and a 10g with 3 dwarf puffers. I was thinking of moving the puffers into the 20g because their tank gets dirty pretty quickly, and doing something in the 10 but am unsure of waht to do. If i move the puffers i would have to take the light of the 10g and put it on the 20 because it has 26w of lights for plants, and then move the 20g light to the 10g. Does anyone think i should do this or is it a bad idea? Also if you had the 10 what would you do with it?