Yes, the pump draws water from the top and pushes down through the sponges and bio-media and exit below,you can also do it the other way round,
the pump draws water from the bottom and push it upward through the sponges and bio-media. Before this setup i actually use a hang on filter and retro fit
the solar pump to the hang on filter,i don't have any pictures on that.
At first i did use the solar panel to charge the battery but it took like forever to get it fully charged..now i do it manually.









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