i hope this helps you. this is a picture i just took. the one on the left is the hydor facing down. the one on the right is it facing directly up. can you see the difference. of course the size of the wave thing will depend on your pump and how deep it is. mine is a MJ900 and roughly 5-7 inches below the surface
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-Mark
Tank Journal
All Cows Smoke Grass.
That is why we have HIGH GRADE milk.
I've Got More Grams Than Teddy
and don't worry, be hyphy
