02-26-2010, 11:17 AM
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Larger canister when using a surface skimmer?
Just looking for some opinions on this...
When using a surface skimmer, the skimmer has 2 inputs (one at the surface, one at the bottom of the tube). Since the flow to the filter is split between the 2 inputs, I would think this reduces the suction at the lower intake (compared to having just a basket). So, if using a surface skimmer, would you want to increase the total flow of the filter by either opening any flow controls or even upgrading to a larger filter with a greater flow rate?
Basically, I have a planted 44g corner fw community tank with a Fluval 305 on it, and I don't really need 'current' in the tank. But, I have an opportunity to get a 405 really cheap, move all my media over, and maybe use the 305 on another tank down the line (maybe a 27g or 35g Hex). There's a pretty good deal on the 305 as well, so I can also just get another 305 for the future tank. I know you can never have 'too much' filtration, but would the output from the 405 be too much for the 44g? (I don't have the specs in front of me, but I think it was in the neighborhood of a 30-35% increase in flow from the 305 to the 405.)