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I am thinking about adding one or two hydor koralia to increase flow in middle/bottom of a tank.... to better disperse CO2 and other nutrients. Tank sizes are 90 and 120g, each with 2 returns at the top. I would probably place them along back wall near corner.
I have never seen one in a FW tank and need some advice on the suggested size.
To those who have used HKs, would you like to have larger or smaller models than you currently have? Also, do you suggest two small models in each tank, say two no. 1 (400gph), or one larger no. 3 (850gph)? Are there any quirks about these models to point out?
thanks, Neil
I have never seen one in a FW tank and need some advice on the suggested size.
To those who have used HKs, would you like to have larger or smaller models than you currently have? Also, do you suggest two small models in each tank, say two no. 1 (400gph), or one larger no. 3 (850gph)? Are there any quirks about these models to point out?
thanks, Neil