UPDATE:
Still going.......75g is cycling w/ a male Convict and a male Jewel cichlid atm, waiting to make sure everything is safe before I start adding more. Last night I set up another 20L only to realize I have the room for a 29g so i'm gonna fish that out of storage along w/ another 30L and a 10g in a few days and just transfer the matured water and filter right into the 29g. Just realized I could set up a few more tanks w/ sponge filters since my Air pump that's rated to 180g was only running 4 filters in 3 tanks that totaled less than 75 gallons, so I did the 20L, threw a big one in the 75g (which already has a Emperor 400) for 500G/Hour. Gonna do the same thing for the 2nd 30L, going right next to the 29G and I found a table I stored away that used to hold a 10g, so I set it up again and i'm gonna dig out another 10g this week. Just gonna put some fry in them to cycle I guess, I really want them for pairs to grow-out in, but whatever, I can move stuff again later.
Also set-up a 20g RUB called "Unbreakable" for Creek Chubs/Fallfish/Suckers w/ a submersible Duetto, and running a 5g for Fathead/Trout minnows/Shiners. The concrete floor really does a great job of keeping them cool like the limestone streams they live in. Much cheaper than buying a Chiller.
Total is up to 15 tanks currently, gonna be 17-18 by the weekend.