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Old 08-21-2005, 01:39 AM   #131
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I was just wondering if the high PH caused by the ATS scrubbing might be due to the GH that is not removed once the CO2 and KH has been depleted.. And if so could the high point be controlled by keeping the GH at a certian level..
I might be nitpicking this to a point that you havnt tested if so, just say so.. :P
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Old 08-21-2005, 05:14 AM   #132
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No I havn't tested that theory, but my gh is about 2 or there abouts. As you may already know the gh will not affect the ph whatsoever,it is the kh and Co2 and maybe a few other factors that will effect the ph, like phosphate buffers, but I do not use any buffers so that can not be considered. The fact is that the algae takes almost all of the Co2 out of the water and therefore raises the ph.
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Old 09-27-2005, 04:29 AM   #133
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How is the project going everyone?
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Old 09-29-2005, 08:49 PM   #134
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Im reconsidering the application.. reef actually..
Im thinking that it will tear through alkalinity.. so suplementing it will be a bigger issue then normal..
http://www.tropicalresources.net/php...ic.php?t=12258
steves post there just backs up everything you have been saying about this..
what to use to build this is also running through my head as well..
Ill likely have to build or mod a skimmer and I havnt got done shopping for the main tank lighting or the RO/DI system.. so its on the back burner sizzling right now..
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Old 10-19-2005, 05:54 AM   #135
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I cant belive that Im doing this LOL.. but Im going to post a link to earlier in my own thread.. this one!
http://www.aquariumadvice.com/viewto...r=asc&start=70
I edited my calculations post 5 times so far.. now that I think Ive done it correctly.. Please someone check my math. 8O
The flow is absolutly a trickle of what I thought it was going to be..
My old fluval 304 puts out at least two times that rate of flow.. no joke..
Im posting this now becaue there has been a development in my situation..
Ive bought lighting ballasts from e-bay and there in transit as I type..
Enough for the tank and the scrubber.. :P all for less then $80!!!! WOOOT!!
Now I really need to know how much flow I need so I can deisgn my system..
So.. JProx, ashdavid.. I need help bad.. I really dont want to screw this up in the
planning stages after mulling everything over for this long.
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Old 10-19-2005, 09:32 PM   #136
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How much surface area will the scrubber be? And just to refresh my memory how big is the tank? I should also mention that those flow stats are a minimum, you can go a little higher than that without any detrimental effects.
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Old 10-19-2005, 09:41 PM   #137
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Its a 75 gallon tank.. there is a good chance I will be using a 29 gallon as the sump..
And you think my calculations were right? even if there bare minimum at least I didnt miscalculate..
the scrubber should be about 2 square feet..
Im getting a 4 lamp HO ballast that I ordered soon in the mail.. Im planning on using it for the scrubber..I think it is rated for a maximum of 16ft of HO lamps.. Im not sure what that is wattage wise but I know its minimum 220watts possibly more.
I tryed to look up the wattages of standard HO lamps recently and I keep getting hits on T-5 HO instead of the old T-12's.. if anyone knows what the standard wattage is on a 4 foot T-12 High Output lamp I would be very appresitive for the information.
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Old 10-20-2005, 05:24 AM   #138
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All calculations seem to be fine, but I would be trying to get the flow up a little bit. The light if it is 220w should be fine too.
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Old 10-21-2005, 06:19 AM   #139
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How much flow would you suggest then? the calculations came up with a minium of 120gph for the 2 square foot scrubber I have in mind.. I will likely be dialing down a more powerfull pump for this anyway (with a valve on its output side) I just need to know so I can design the wave bucket for the correct volume.. and Thanks for your input..
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Old 10-24-2005, 02:45 AM   #140
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I would at least be trying to get the tank to turnover 3-4 times an hour. If that invloves to much water going into the dump bucket, run a seperate hose that feeds into the tray and run it over the srceen that way. Dr Adey suggest this when higher flow rates are necessary.
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