Hey guys. I'm just wondering if anyone has any experience with these DC powerheads? I'm looking to get a new powerhead for my 20g long. I'm looking for a DC powerhead with controllable settings and can be used via Bluetooth or a app/ remote. The one I have now is a plug and play no settings for flow or intensity and I feel like there isn't enough surface agitation. Please let me know what you guys think. 2nd picture is the powerhead I have now. 3rd picture is a pump I bought and it turned out being too big /strong for my tank .