Decided to get an aerator for my new app. 7000 gallon pond. Windmill is too expensive and I can run 125 feet of Romex cable with no issues.\n\nCurrently stocked with around 100 small gold fish and a few plants. As it cycles I will increase load on the pond. No filters just \n"a la mother nature."\n\nZone 9a so no ice issues.\n\nAfter much reading I am down to 2 aerators.\n\n1. Laguna 75. 50 watts and puts out 2.47 CFM. Has a 2 year warranty and costs 5 on Amazon. Reviews are OK but some possible issues with noise level.\n\n[URL]https://www.amazon.com/Laguna-Aeration-Ponds-7000-Gallons/dp/B00632AN88/ref=pd_ybh_a_4?_encoding=UTF8&psc=1&refRID=DQR4KJ7SSZF3QG50RZ90[/URL]\n\n2. Aquascape 61000 Pond Pro. 45 watts and puts out 2.1 CFM. 3 year warranty. Cost is 0 on Amazon\n\n[URL]https://www.amazon.com/Aquascape-61000-Aerator-Water-Features/dp/B007BK76YK/ref=pd_ybh_a_4?_encoding=UTF8&psc=1&refRID=5B61XQYK0070ARYMTXAG[/URL]\n\nNow there are many other choices but I have narrowed it down to these 2 pumps.\n\nI prefer the one larger diffuser disc on the Aquascape but I don't think the extra one year warranty justifies the 0 higher price tag.\n\nMaybe the quality of the Aquascape is superior?\n\nAnybody have experience with either of these units?\n\nPlease don't confuse the issue more by suggesting I look at the Koiair 1 or other units. I have looked at dozens of air pumps and feel that one of the above referenced pumps will serve me well.\n\nI had considered the Airmax Koiair 1 but it's output is only .8 CFM. Now maybe that is enough as it is recommended for ponds between 2000 and 8000 gallons.\n\nIt's a bit confusing as the pumps I mentioned are all recommended for my size pond but the CFM output varies quite a bit. The Laguna has an output 3 times that of the KoiAir!!\n\nSo are the Laguna and Aquascape overkill or is more air always better.\n\nBTW: My pond depth is 2.5-3 feet maximum depth\n\nI appreciate any experiences or knowledge you can share.\n\nHappy Thanksgiving to all.