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Home      Reply		Viewed: 205 -- Replies: 3
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Posted	ph stck on 7.6
14-09-2006 19:38 by JOHANSWAN	any adv or help will be apreciated as i am out off ideas marine 180 liter 10 week old tank with 3inches gravel and 15 kg liverock with red sea prizm skimmer tests phosphate .5 but replaced with new rowas nitrate 0 nitrite o kh 9 and used sulpherbead atcivator with corbonate granules pumped by a dosing pump.since teusday my ph keeps falling tried ph-buffer,kh-buffer and kalkwasser manage to raise it up to 8.2 and hout later back to 7.2 fish are still fine but some corals suffer any solutions or ideas please
14-09-2006 22:56 by laura	What is the oxygen like in the tank? In this warmer weather it gets depleted faster and therefore the pH will drop
15-09-2006 00:25 by craig	what gravel have u got mate also need another 3kg of rock for filtration what salt do u use what ph does salt mix up to when mixed fresh what time do u take ph reading if when lights out it does drop down and when lights on it raises
15-09-2006 11:13 by Alan	How much algae growth is there? I would be concerned that the flow rate of the sulpherbead activator try setting it up to return to the tank over some aragonite sand that should help and why is you gravel bed 3" deep? If you are working towards a DSB it is not deep enough plus your description of it being gravel implies completely the wrong grain size. I am amazed your nitrate levels are not through the roof. As far as substrate goes you would be better with a half inch depth of aragonite sand. The good thing about aragonite sands is the buffering potential it is soluble at a ph of 7.8 I believe. Can you describe in detail as well what the set up is for the sulphurbead activator with carbonate granules is this rigged up to a CO2 canister? I am concerned the return to the tank maybe running to fast not sure on this though as I have never used a gizmo like this I opt for ecosystem methods more reliable in my opinion certainly when you have a power cut.

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