Painting Liverock
- Thread starter Rob.B.
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Harold999
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Well, you need something to put your corals on and looks nice.
Think about this: fully around the rock there is a given water pressure. Water that is absorbed by the rock in the micropores can't fight that pressure, it is trapped.
Harold999
Well-Known Member
It will what was gathered on the surface, but not from deep micropores. As long as you keep the rock underwater, it's trapped there. If you pull the rock out of the water, it can come out.
Harold999
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Just basic physics. Water always follows the path of less resistance. Water flowing around a rock won't go voluntary into an already filled micropore, because the resistance is much higher there.
elysics
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Basic physics isn't all the physics there is.
There is always diffusion going on, if bacteria in the Rock eat nitrate then more nitrate will follow that gradient and seep back in from outside, whether there is flow or not. How much of that will happen no idea, but it will happen.
homer1475
Figuring out the hobby one coral at a time.
Yeah sorry @Harold999 your just straight up wrong, and science has proven many times over that bacteria do live well within the rock, and not just on the surface.
The whole idea behind cintered media in a sump is for very low flow inside the block. The low oxygen level deep within the rock and/or media is for the bacteria to convert nitrates to nitrogen gas. Those bacteria live deep within the rock/man made media where there is very low oxygen levels.
Your understanding of the science is just plain wrong.
The whole idea behind cintered media in a sump is for very low flow inside the block. The low oxygen level deep within the rock and/or media is for the bacteria to convert nitrates to nitrogen gas. Those bacteria live deep within the rock/man made media where there is very low oxygen levels.
Your understanding of the science is just plain wrong.
Harold999
Well-Known Member
And how many flow do you think there is OUTSIDE the block? 99,999% of the water will never reach the inside of the block, it just flows around the block towards the exit of the sump.
The amount of water going through your sump that gets the full benefit of the ceramic block is neglibible.
homer1475
Figuring out the hobby one coral at a time.
Again, your understanding of the science is just wrong. End of story.
Quit trying to come up with reasons why your right. Science, yes actual science not your banter, has proven you wrong.
Quit trying to come up with reasons why your right. Science, yes actual science not your banter, has proven you wrong.
Harold999
Well-Known Member
Good anaeroob filters treaten the whole/total wateramount, not just the 0,01% (or whatever small amount) that succeeds to reach the deeper parts of a ceramic block.
It's a very unefficient way of removing nitrates.
You should need to find a way to let ALL the water flow through the block, then we're talking.
polyppal
2500 Club Member
It’s funny how every now and then someone comes along with a crackpot theory to contradict something that’s been proven and duplicated 1000x...
Your not gonna convince this guy he’s not the worlds greatest reef scientist, I wouldn’t waste my time trying to reason with him
Harold999
Well-Known Member
Instead of making this a circlejerk for the believers let's get some real tests to the table. Here a controlled test of a Marine Pure block vs empty tank. At the end the nitrate levels were exactly the same in all tanks.
So does it remove nitrates? Nope.
So does it remove nitrates? Nope.
elysics
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You think dead rock/block turns into liverock/-block in 9 weeks? Because that's what they tested, dead, uncolonized rock.
They should have tested a block like that that was already in a running system for 2 years. And liverock as comparison while they were at it.
Harold999
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The problem i read with "old" blocks (laying in the sump for a long time) is that the pores will clog, and have to be rinsed out from time to time to be open again. But if you do that you will kill the anaeroob bacteria...
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laverda
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Failse! Dear sir you have zero understanding of rock work and saltwater hydrology as applicable to our aquariums. You have made serval conflicting statements and others that are just flat out wrong. I suggest you read Randy Farley Holmes threads on the matter to educate yourself. I only wish to educate you. Good luck!
Harold999
Well-Known Member
Only saying "false" and "i should read this or that" doesn't say anything about my points. You have no valid arguments that prove otherwise.
If you want lowering your nitrates, take a refugium, an ats, or do water changes. Rock/ special bricks hardly do anything.
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