The smallest koralia nano is 240gph. You would have bought 3 or 4 of them for a 20H? How would anything be able to swim? It would be a washing maching... You would have to run the on a controller in intervals. Thats way overthinking it for that small of a tank. 1 koralia is plenty. No dead spots.i would've bough like 3-4 nano's and placed them in varies spots so i would have no dead spots =P the bigger the powerhead isn't always the best choice (unless you're buying mp10/40/60's, those are just full of win), ideally you want 0 dead spots.
That's exactly what I was thinking...The smallest koralia nano is 240gph. You would have bought 3 or 4 of them for a 20H? How would anything be able to swim? It would be a washing maching... You would have to run the on a controller in intervals. Thats way overthinking it for that small of a tank. 1 koralia is plenty. No dead spots.
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+100I have 2 nano koralias on my 29 and it does great. I think 1 should be good for your tank, it will take a few trys moving it around to find the best placement so your getting water flow everywhere. If you feel like you need more flow after the 1 you can always add another but after live rock and sand your looking at 15 gallons by then so 1 240 should be plenty..
Thanks man!I have 2 nano koralias on my 29 and it does great. I think 1 should be good for your tank, it will take a few trys moving it around to find the best placement so your getting water flow everywhere. If you feel like you need more flow after the 1 you can always add another but after live rock and sand your looking at 15 gallons by then so 1 240 should be plenty..