Thinking Of A 20g Reef Tank

chefrossco

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aldeburgh, suffolk,england
im thinking of a 20G reef tank, my question is how much flow of water should i create over the rocks and corals that i plan to have in there????

also what sort of powerhead ect would i need to create this??

thanks
:blink:
 
go for around 20x flow.

so for you that would need a single powerhead which moves 400gph or 2 smaller ones.

The latter would be my preference. This way you can direct flow to certain areas of the tank.
This will help in different areas such as coral movement, rock airation and help to eliminate dead spots in thank.
 

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