catzo Posted January 16, 2015 Share Posted January 16, 2015 I have 1 koralia nano 240 in my 10g reef, I gotta say its weaker than I expected. Should I get two? Or a single koralia 425? It will be soft corals and polyps, not planning on having any hard corals. Link to comment
AZDesertRat Posted January 16, 2015 Share Posted January 16, 2015 No. I have a Nano 425 and a Koralia 1 in a 16G bowfront with 3" of Southdown sugar sized sand in it and it won't even move the sand. Link to comment
Partially Submerged Posted January 16, 2015 Share Posted January 16, 2015 No one powerhead/pump/filter is ever good enough. Truth. Link to comment
catzo Posted January 16, 2015 Author Share Posted January 16, 2015 True. I think i'm going to install a HOB overflow to a sump pretty soon anyways. Would that help with the water movement enough that I wouldnt need another koralia? Thoughts? Link to comment
Partially Submerged Posted January 16, 2015 Share Posted January 16, 2015 Yes, any sort of sump system is going to provide nice water movement (if done properly). I'd probably still go for a slightly stronger powerhead to push the water around. It depends a bit on your livestock, of course. You could also put the flow-loving corals near the powerhead and the others farther away from it. Link to comment
kidd reef Posted January 16, 2015 Share Posted January 16, 2015 Aim for 30-40xGPH turnover for SPS, bit less for softies or FOWRL. Always better to have your flow coming from multiple weaker sources than a single, poweful source. Learned that the had way. Link to comment
catzo Posted January 16, 2015 Author Share Posted January 16, 2015 Alright. I'm probably going to buy another koralia in the meantime while I'm deciding how to do this sump. I threw the 170gph topfin powerhead I bought for water changes in there last night and it looks 3x stronger than the koralia. Probably just because its a jet-style pump tho. Should I get the koralia 425 or 900? Is the 900 overkill? Link to comment
da1001 Posted January 16, 2015 Share Posted January 16, 2015 I would do the 425 instead of the 900 for sure Link to comment
AZDesertRat Posted January 16, 2015 Share Posted January 16, 2015 The 425 is the same physical size as the 240 only with a larger impeller so is still small. The 900 is over twice as big and is an eyesore in a small system. In addition to the 425 and K1 in my 16G I also have a modded AquaClear 110 HOB on the back which I shaved the impeller down on. It can be used as a refugium or place for bags of media as wel las circulation. If you search my username you should bring up some old posts where I took pictures of the Nano and 900 side by side along with Sicce Voyagers, the older Koralia K series and the newer Jebao WP-25 and WP-40. I still don't have a WP-10 or the new RW series but would like to try one in my nano soon. I have two WP-25's in my 100G and love them. Link to comment
deadthrone Posted January 17, 2015 Share Posted January 17, 2015 I have both the 240 and 425 on my 6-7 gallon (I say that because the rock displaces some water but I'm not sure how much exactly) and I have sps growing BUT my lps was never happy and it was always too much flow so I sold it all. I also have an hob marineland 20 gallon filter on my tank so that provides flow too. My sps is extremely happy with the two. When I turn off one powerhead my tank is not as happy. Link to comment
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