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Old 11-09-2004, 09:11 PM   #1
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New Wet Dry Filter

I currently have a wet dry filter for a 75 gallon tank, a powerhead turning over the tank at 600 gallon per hour, and a protein skimmer for a 90 gallon tank on my 90 gallon tank which I bought 3 months ago. I am having problems with the tank because the wet dry is too small. So I am going to get a new wet dry. I was wondering what you guys think about buying one of the Aquaclear Pro 150 wet/dry filters with the protein skimmer built in for my tank instead of just getting a new wet dry alone. The filter is rated up to 150 gallons. I figured I will have alot less problems with my tank with that much filtration. Does anyone have any experience with these filters. Does the wet dry filter work ok and is the protein skimmer good. Also should I buy a powerhead that turns over more gallong per hour. Thanks
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Old 11-09-2004, 09:17 PM   #2
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I have that filter and it does a good job. The skimmer works well. I use a Mag Drive 7 as a return pump. I did take out all of the bio-balls and replaced them all with 40lbs of LR rubble. If you are handy you can build your own sump for a lot less $$. All in all I am happy with my AquaClear 150.
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Old 11-09-2004, 09:45 PM   #3
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Anyone else have the aquaclear 150?? Also why would you take out the bio balls to add more LR. I have 100 pounds of live rock in my 90 gallon tank. Is that enough? Should I buy more? Should I take out the bio balls?? Dont you have to somewhat recycle the tank if you do take the bio balls out??
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Old 11-09-2004, 11:14 PM   #4
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People recomment taking the bio-balls out because they can become nitrate factories. Do a water test for nitrates and post it here. If they are on the higher end, you may see a drop by taking them out. The amount of LR you have is okay, but I would get more.

Also, I'm pretty sure you don't need to cycle the tank again by taking the bio balls out. Any experts want to comment on this? I'd sure like to know as well.
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Old 11-09-2004, 11:25 PM   #5
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You can just take the balls out and add the live rock rubble. Liverock rubble is full of bacteria so it would replace any that was in the bio balls
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Old 11-10-2004, 12:58 AM   #6
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I have been having a major problem with my nitrates. 2 months ago levels where off the charts. Lately the levels have come in at 30-40. How much more LR should I buy and where do you guys sujest getting it. The LFS or a website and which one. Where should I get the LR Rubble?
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Old 11-10-2004, 01:49 AM   #7
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I've never purchased from them myself but everyone raves about www.liverocks.com
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Old 11-10-2004, 06:22 AM   #8
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If you are going the w/d route, getting one with a built in skimmer is a good idea, it will save you a little work in getting things setup. With 100 lbs of rock in your tank, you have a pretty good bio filter going without the w/d at all. And as stated above, the w/d's can cause some nitrate problems if you don't stay on top of the maintenance.

Depending on where you get the rock or rubble, you may have some die-off once you get it in your tank. This can cause a mini cycle, especially if you pull all your bioballs at once. You probably have sufficient rock now to absorb the spike, but you would be better off to recure whatever rock you get, and swap the balls/rubble a section at a time. The easiest way I can think of is to start removing your bioballs now so that the full load of bio filtration is transferred to your rock over time, rather than all at once. Maybe pull 1/4 of the balls out each week for the next month. That will also give you enough time to cure your rock/rubble, and it will be ready to put in your tank.

If you go this route, you won't need to buy a new sump or w/d, just use the housing you have now. That will save you a lot of money.


As for where to get your rock/rubble. The cheapest method would be to buy plain base rock from your lfs. Besides rinsing it off, it won't need cured and will become part of your filtration in a couple days. If you want rubble, check garf.org and look for their "garf grunge". It's all aquacultured and from what I've read, a large mix from multiple tanks.

Also as for your nitrate problem, what kind of substrate are you using, and how deep is it?

If the 600gph # is true (did you factor in head height?) You are turning your tank over about 6 times an hour. Try to raise that to 10-15 times an hour and your filtration will be more efficient.

hth
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Old 11-10-2004, 10:07 AM   #9
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You can see what yur LFS does with all of the rubble in the bottom of the boxes when they get LR. I get mine free from the LFS. They were just throwing it out. Now they just cure it along with the rock they get and call me when they empty the tank. It is a sweet deal. Some LFS around here sell it as well. It is something you will have to seek out locally. Here is why it is a better filter media then bio-balls. Simply put, LR does a better job at removing nitrates. The bacteria that consumes nitrate live in an anaerobic environment (without oxygen). Bio-balls are designed to harbor bacteria in an aerobic enviornment. (with oxygen). That is why water trickles over the bioballs and they are not completely covered. This does greate at removing nitrite, but not nitrate. Just fill up the bio-ball chamber with LR rubble and always ensure the rock is covered with water. This will give you the same benefits of the LR in your diaplay tank. You could also add another 40 lbs or so of LR to the main to help out.
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Old 11-10-2004, 12:00 PM   #10
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Lando - Is there anything else people can use in the wet dry compartment besides LR and bio balls? I am having a time trying to get the lfs to give up their rubble. I don't want to use the bio balls, so I am look for another alternative if possible. Any ideas?

Mike
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