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Old 04-11-2005, 10:33 PM   #1
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LR Rubble in sump

OK...I finally got my tank goin and will get LR this weekend (hopefully).
I few questions - Should I remove the trickle part on the sump, you know that part where the water flows in and flows thru a plate with lots of holes. I i I need to make sure the water is high enough to cover the LR rubble but wasnt sure about that part
if anyone has a god pic please please post it for me to see
Ill be posting pics soon - probably tonight
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Old 04-12-2005, 09:39 AM   #2
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You can remove the bio balls if you wish. If you have a DSB then the nitrate production the bioballs can cause will be counteracted by the DSB to some degree. If you put LR in the sump the rock does need to be fully submerged. I see no real problem with submerging the bioballs aswell. The submerged biomedia will just become surface area for bactera to colonate and help filter the water of ammonia and nitrite. When you increase the water level in the sump be sure to keep it low enough to hold the backflow water when the pump is off.
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Old 04-12-2005, 09:46 AM   #3
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I am putting check values on the return pump side to prevent.
I know aobut keepin the LR rubble underwater and I figured out that I need to remove the trickle part cause its too loud LOL
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Old 04-12-2005, 11:24 AM   #4
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can u add lr rubble later, if nitrate becomes problematic, or should u just add it in the beginning?
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Old 04-12-2005, 02:45 PM   #5
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My opinion would be to keep the drip plate and put some filter foam there to catch the big stuff. this should eliminate all noise, if not, maybe something is wrong with the setup.

The only problem that I have with live rock in a wet/dry application is that it depletes the water of oxygen which is what kills the nitrates and the live rock rubble isn't actually live any more so it is the same as bio balls submerged in water.

I know some will argue this, but I have several wet dry setups with not one problem with nitrates or anything else. I am not saying that live rock rubble doesn't work, I just think it is more costly and I haven't seen the benefits of it yet.
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Old 04-12-2005, 03:42 PM   #6
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so you saying the bioballs submerged would be just as good? I thought about that but wasnt sure and gezz....it would be cheaper. Everywhere I've gone they want to sell the rubble jsut as much as the bigger rock.
Question, how high should I bring the water? the noise is comin from the water dripping off the drip plate.
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Old 04-14-2005, 12:17 PM   #7
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When you put the LR rubble or Bio balls in the sump this should eliminate all noice. right now it sounds as if the water is dropping a good distance to make the trickle noise.

In my wet/dry filter I don't have any of it submerged in water. I use the trickle or wet dry filter how it is supose to be used and works great. I added light to the filter to promote algea growth in the filter and not in my tank and it works great. I also use bio balls in it.
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Old 04-14-2005, 12:42 PM   #8
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Quote:
The only problem that I have with live rock in a wet/dry application is that it depletes the water of oxygen which is what kills the nitrates and the live rock rubble isn't actually live any more so it is the same as bio balls submerged in water.
No, that's incorrect. It's the very much alive LR rubble (actually, the bacteria in it)that remove the nitrates, and these bacteria do not require high oxygen (in fact, it would kill them).

Oxygen does not remove nitrates, anaerobic bacteria do. Bioballs lack the pore structure that allows these bacteria to set up shop.
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30 gal standard 55 lbs LR, 60 lb live sand, 10 gal sump/refugium. Urchin skimmer, mag7 pump, 3 x 96W PC combination 10,000K/actinic bulb, 2 blue LED moonlights
SG 1.024, temp 79.5, pH 8.4

Livestock I added:

1 skunk cleaner. 12 hermits: red, scarlet, blue. 15 or so assorted snails. Discosomas, Ricordia, Rhodactis mushroom corals, chaetomorpha (sump), 1 feather duster, Montipora digitata, Montipora capricornis, Montipora hispids. assorted zoos, Xenia, Kenya tree coral, green Sinularia, green star polyps, branching hammer coral, bubble coral, Devil's hand leather. Yellow chromis, purple firefish.

Hitchhikers: the usual suspects :crabs, bristles, urchin, mantis shrimp (now in exile in mantis tank)

List of possible/likely newcomers:

Feather duster. PJ cardinal, Bangghai cardinal, Firefish goby, Clownfish, Neon goby, Yellow watchman goby, Orchid dottyback. Various corals.
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Old 04-14-2005, 12:46 PM   #9
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I agree with midiman- denitrification(nitrate removal) requires anaerobic conditions(lack of oxygen) to work. LR gives this ability deep within its structure. The bioballs will not provide the denitrifying bacteria. Bioballs will help with nitrifying bacteria as will LR. Both will harber beneficial bacteria and that is what makes it live, therefore it will be LR.
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28gal bowfront
40lbs livesand(bag from LFS), 30lbs live rock(LR.com)
2 O. Clowns
1 peppermint shrimp, 5 red leg hermit crabs,
4 mexican turbo snails, 15 nassarius snails
ricordea mushroom, candy cane coral,
super color polyps, hairy mushrooms
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Old 04-14-2005, 01:22 PM   #10
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I have bioballs and have had no problems. My sump (bioballs) as been set up for like 4 months now. Prior to that I had all kinds of problems...
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