10-30-2009, 02:25 PM
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pump size ?s
I have a 95 gal. malawi tank running on a rena xp3, diatom filter xl, and 9watt submersible uv sterilizer. I have been wanting to add mroe filtration with the hopes of turning off the diatom filter and adding more water movement. A current issue I battle with is phosphates in my local water supply thus creating green water that I use the uv to control. After lots of research I decided to try my hands at wet/dry sumps. I plan on making one and just have a couple questions. I currently am looking at getting a surface skimmer/siphon/overflow box set for up to 125 gal tank (hang on back). now, with that being said, what would be a "proper" return pump size. I don't want to have the too little contact time with the filtration in the sump. I saw somewhere that a guy used the rio 2100. would that be a good place to start or would I need something else? I don't plan on turning off my rena xp3, I want to add this to it.
A second question would be if there are any suggestions as to what more I can do to get my phosphates lower. they hold steady at around 2 ppm (??) which is still too much, but better than what it was.