Two EKBS-10 
Solar Powered Units in 0.25 acre pond stocked with largemouth  bass.
Suspended air diffusers  provide 6 ft bubble zone of influence at depth of 4+6 ft.
PEC SolAerators have been selected as  the solar powered aeration units for the Inks Dam National Fish Hatchery.
Paddlefish were formerly abundant in the Missouri, Mississippi and Gulf Coast drainages. They were also present in the Great Lakes. Significant declines have occurred in some rivers, while increases have been documented in others. Paddlefish were once an important commercial species and even replaced sturgeon as the major source of eggs for caviar. The largest recorded paddlefish harvest was in 1899, when a total of nearly 2.5 million pounds were taken in the United States. Over the following 23 years the reported harvest has decreased by 70%.

Thats where the Inks Dam National Fish Hatchery comes in.  This fish hatchery plays a pivotal role in restoring  paddlefish populations in the Mississippi River basin, and raises largemouth bass and channel catfish for sport fishing.

PEC Solar Aerators have been selected as  the sol
aerator  for the Inks Dam National Fish Hatchery.

No other 24/7 solar powered aeration system continues to meet the Inks Dam solar powered aerator specifications.

Only the PEC Solar Aerator meets their  specifications because it can offer:
24/7 aeration  with  up to 4 days of backup power on cloudy days and infinite
backup power aeration with charged spare marine batteries.
2 years of oil free motor warranty (
others can only offer a few months).
1 year replaceable pump diaphragm warranty.
1 year "bumper to bumper" warranty on all parts.
5* year depreciated repair vs. replacement warranty on all parts.

Oxygen transfer in 3-6 foot deep aquaculture tanks is no secret.  Your not going to get more than 1 or 2 lbs/hp-hr with bubbles or splashing technology.  Using grid powered systems, you will still need supplemental aeration to insure  surviveable aeration.  Start choosing portable PEC solar aeration systems.   As you add PEC solar equipment, you will see savings in maintenance and power costs over any grid , wind, or other solar powered systems available.