Pros: Equal air disbursement, tiny bubble size, barbed hose input, cheap
Cons: Feels cheap (bought an extra one as a backup)
AHHHHH! Algae in the tubs. No fear, EcoPlus® 12" Air stone to the rescue.
I knew algae was going to be a problem before starting the tubs thanks to Jeb's videos. I painted the inside of the tub lids, like he recommended, to help block the light but the grow lights are too powerful.
With the algae spreading, I knew I needed to introduce air stones to the Kratky tubs. Using this cheap air pump from Amazon, I left the air stones running for two days straight to break up the algae. Success!! Now the pump runs on a repeat cycle timer (1min ON/10min OFF). No more significant algae buildup and the plants are LOVING the air to their roots.
I snagged these at $3.41 each, if you can find them at this price... buy them up!