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fluval 104 / 304 |
10-05-2006 10:24 by tommy
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how much more powerfull is thew 304 to the 104 |
10-05-2006 11:00 by JOHANSWAN
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the fluval filters is 104 pump 480liters an hour the 304 pump 1000liters an hour 104 is for 100liter tank and the 304 is for 300liter tank altough it will do no harm to run both.i have a 103 and 304 running on a juwel 300 and took the juwel intarnal out due to space. |
10-05-2006 11:58 by Alan
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tommy is this for a reef tank is it live rock based is the media inside it biological if it is I suspect this filter is causing your algae problem. |
10-05-2006 16:07 by tommy
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what do you mean ... all the media is in the internal and external filter ? |
11-05-2006 09:04 by Alan
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The best way of keeping marine and avoiding nitrate and algal problems is to set it up on a live rock basis and if you do this the live rock should be the only biological medium. Therefore the media in the canisters should not be allowed to become biological and should be restricted to a mechanical or chemical function not a biological one. |
11-05-2006 09:13 by tommy
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so how do i do this i have a internal filter wil pads ect and a tank full of live rock ?? i have got rid og the 104 because not powerfull enough |
11-05-2006 10:02 by Alan
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How big is the tank and how many kilos of live rock do you have also what is the turn over like? You need around 1 kilo for every 2 gallons also the live rock needs to be positioned in an open structure to be most effective this allows maximum water movement around the rock.
When removing artificial filters this needs to be done gradually this then allows the bacterial colonies to build up further within the live rock to handle any additional waste they would not normally deal with. Gradually remove the media over a 4 week period.
Another thing to consider is the turnover of water in the tank for the live rock system to work well you need at least 20 times the volume of the tank an hour perhaps even more I run on about 30 times an hour. It is important there are no dead spots in the tank as this will reduce the efficiency of the live rock.
By using live rock and a DSB I have achieved a nitrate figure of 2.5 ppm in addition with the algae scrubber phosphates are down at 0.03 ppm I have rowa phos in there to but I haven't changed it for about 9 months I can't imagine that it is still active.
The other thing is a good skimmer I only have a cheap airdriven internal skimmer I depend more on my DSB and algae scrubber to handle what a more powerful skimmer would I get a cup ful of skimmate a day though with the feeding of the tank that I do that being phyto and brine shrimp daily. |
11-05-2006 10:09 by Alan
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Incidentally having nitrates and phosphates this low still does not stop algae growth on the glass this is an inevitable part of reef keeping the trick is to have enough grazers to handle it I find hermits more effective on the rock work than snails and I am more concerned with keeping the rock work clear I also have an urchin that stop coralline algae getting out of hand as this can inhibit the effectiveness of live rock to and whilst being nice to look at it can become just as much of a nuisance as hair algae or diatoms but more deadly as it reduces in effect the filters efficiency.
I don't have enough snails to keep the algae down so I clean the glass daily by doing it daily I only have a thin film to remove so it only takes 5 mins if you leave it longer it is a much tougher job especially if coralline algae takes hold on the glass. |
11-05-2006 14:12 by drummerduck
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I read your posts Alan and it make me feel kike i am actually doing something right eventually!!!
I'm intrested in the urchin? what is the breed? i'm assuming it munched the coralline and keeps that under control?
I checked out Sevenoaks last weekend and i couldn't believe the amount of corals they has there......they stock pretty much EVERYTHING!!
I'm back down there this weekend to collect my 20kg of live rock to add to my 15-20kg i already have, i'm working towards a reef run purely on live rock, skimmer and general water turn over e.g tunze 6060 and powerheads.
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11-05-2006 15:12 by Alan
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I have a variety of long spined urchin but not the usual long spined you see the spines of mine are about equal to the diameter of the main body still pretty sharp though.
I wouldn't add the urchin until the coralline algae growth takes off though I put mine in a bit early and the urchin pretty much totally inhibits it in my tank fantastic grazer though.
When I was in there last sat I bought 20 kilos of ultra grade rock 3 peppermint shrimps and 6 ceriths as well as a few other things misses ain't to happy spent about £320 in the end only intended to spend about £250 oh well.
It is a fantastic shop for the more unusual items to such as sand from their DSB and farm grunge not many places will sell this stuff but it is the key to getting a DSB going. |
11-05-2006 15:29 by drummerduck
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My other live rock is established with loads of coralline. I looked at the ultra grade rock..... its lovely in shape!!! just out of my price range....i'm assuming there is little difference other than the shape between the two? |
12-05-2006 08:16 by Alan
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It seems very light so you get more rock for your money I guess this rock has sprung into life now its covered in polyps. |
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