After doing some studying on this I ordered the pro air yesterday. I'll check out the pet smart wands. I know the defuser is one of the most important things. Here's a tip on what I do to save drawing my battery while I am docked and charging. I have an old cheapy auto 12 volt charger in my compartment next to my dual charger. I have a battery switch mounted close to my bait tank. One side of the switch is connected to my aux battery and the other side is connected to the old charger. When I dock, I plug in the surge protector both chargers are plugged in to and I flip the switch. My 12 volt load (currently my tank pump) is switched to the old charger which essentially becomes a power supply. I wouldn't run any electronics off it, but it does fine for 12 v motors. I'll run my air pump the same way. I used to use a 12 volt relay but it was a pain when the relay blew. I probably just needed to go with a higher current relay but the switch works great.

I've thought about it and I may modify my filter to not output a heavy stream so it doesn't create a lot of motion, then just turn it on when needed. It's all mounted above the water, and I can easily change it so the water flow is reduced and just drops an inch straight down. All I have to do to keep the water from jetting out is to turn the pump a little. If I ever have air pump issues, I can always just turn the pump around to jet out like it does now..

Thanks a bunch for the tips. It all makes perfect sense if you've ever ran a regular aquarium before.