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#1
02-16-2004, 04:37 AM
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Brown crud on top of water
After about 3 or 4 days after I do a water change I always have this brown crud that starts to gather on the top of the water. I usually just move one of my power heads up to the top for a few days. After about a week I have no problems. Then I do another water change and start it all over again. Any ideas?
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72g Bowfront Drilled,Lighting,2x250 10,000k MH,2 actinic T5,2/6" fans,2MJ with 1600gph convertions kits,Bullet 2 style skimmer with Mak 4,29g sump/Refugium,96W power compacts in sump, Velocity T4 Titanium "return",Life Guard 300 Fluidize bed filter,1"sand bed, 29g auto top off, 140lb LR,SPS,LPS,Softies,Zoos,2Percula Clowns, 2yellow tail Damsels,1yellow tang,2cleaner shrimp, 1six line Wrass,2 Bengaii Cardinal,1lawnmower Blenny,1sand sifting star,1TigerTailCucumber, snails,hermit crabs,Macros. 
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#3
02-16-2004, 04:52 AM
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Yes I do have a skimmer (CPR) it seems to work alright and I have decent water flow on the surface.
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72g Bowfront Drilled,Lighting,2x250 10,000k MH,2 actinic T5,2/6" fans,2MJ with 1600gph convertions kits,Bullet 2 style skimmer with Mak 4,29g sump/Refugium,96W power compacts in sump, Velocity T4 Titanium "return",Life Guard 300 Fluidize bed filter,1"sand bed, 29g auto top off, 140lb LR,SPS,LPS,Softies,Zoos,2Percula Clowns, 2yellow tail Damsels,1yellow tang,2cleaner shrimp, 1six line Wrass,2 Bengaii Cardinal,1lawnmower Blenny,1sand sifting star,1TigerTailCucumber, snails,hermit crabs,Macros.
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#5
02-16-2004, 11:38 AM
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brown crud
Hey Taz
Sounds like you are adding something or destabilizing the bios...... If you are using RO water check the differences in the parameters of old vs new for a clue...ie phos ppt.?? Also if you are into an experiment: Float new water in a jar etc in the tank (sump) and just a few drops of old water......a biological should grow if the new water is providing eg phos or silicate (ie poss. diatoms). And the reverse floater for old water supply of pre-crud....you get my drift.. Good luck
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John its all about quality, not quantity..... ...when in doubt buy a Binford....
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#6
02-16-2004, 01:25 PM
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Thanks for the input I'll give that a try
Cheers
__________________
72g Bowfront Drilled,Lighting,2x250 10,000k MH,2 actinic T5,2/6" fans,2MJ with 1600gph convertions kits,Bullet 2 style skimmer with Mak 4,29g sump/Refugium,96W power compacts in sump, Velocity T4 Titanium "return",Life Guard 300 Fluidize bed filter,1"sand bed, 29g auto top off, 140lb LR,SPS,LPS,Softies,Zoos,2Percula Clowns, 2yellow tail Damsels,1yellow tang,2cleaner shrimp, 1six line Wrass,2 Bengaii Cardinal,1lawnmower Blenny,1sand sifting star,1TigerTailCucumber, snails,hermit crabs,Macros.
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