Slimelung Multiplying in Clean O2

[LeRS]

With Only 1 Tile Polluted Oxygen in base Slimelung spread by my entire base because him grow more faster in Polluted Oxygen than destroyed by Clean Oxygen...I was confused and made a Test in a room 6x9 Tiles , filled with vacuum ...after filled with Clean Oxygen and after added 1Tile Poluted Oxygen with 1000 Simeung...in first day the entire Clean Oxygen was contaminated with slimelung...in day 3 each tile of Clean Oxygen with +3000 Slimelung...before to explore Swamp Biome I used deodorizer...after clean all poluted oxygen in the area, all slimelung in air died naturally...and limestone was stored in a room with Cloro Gas to not generate slimelung...but now look impossible,in early, explore swamp  I think in create a room with clorine among swamp and my base...but this give a lot work...I am noob , to say true, but i like a lot this game...if someone know the efficiente way...please share with me...appreciate your attention (sorry my bad english)

[Neotuck]

I never relied on O2 to kill slimelung.  In my experience slimelung dies in clean O2 just as fast as food poisoning dies in clean H2O

I just use deodorizers and pump the air into exosuit docks.  Some reason slimelung won't infect dupes if used in an exosuit

[mathmanican]

In Swamp Biome, if you don't build enough deodorizers  to convert all PO2 into O2, then the Slimelung will never fully die off. The O2 tiles near the remaining pockets of PO2 will still have plenty of slimelung in them, but it won't build forever.  You will reach a maximum. Wouldn't surprise me if the devs used logistics functions for the modeling (the discrete difference model for them is extremely simple). To eliminate ALL slimelung, you have to make sure EVERY patch of PO2 is converted. Then it will all die off, eventually. 

7 minutes ago, Neotuck said:

I just use deodorizers and pump the air into exosuit docks.

My last base I wanted to live 100% off this idea, and wanted to use no electrolyzers. It was fun. My oxygen production was 100% coming from the slime->PO2->O2 conversion. I even found a small patch in the swamp biome where the slimelung was minimized, and then sent the slightly slimey O2 to my base with pumps (could have cleansed the slime with chlorine, but no need as the stuff didn't multiply fast enough to cause problems). Not good enough for a zero germ play through, but more than sufficient for a normal game.  The dupes kept a constant -4% for slimelung germs, but they stayed at 100% health all the time for several hundred cycles thanks to the +15% health boost. 

[Neotuck]

Making sustainable O2 from Morb farts has been a goal of mine for a long time

[LeRS]

I dont know if is a bug of the Rocktry version...but before...polluted oxyged rise up to base top like hydrogen making deodorizer life easy...but now PO2 walk sides in O2 ...and if this PO2 have slimelung each path him left a few slimelung in clean O2...before in older version, this slimelung in O2 will be destroyed with time...but now still multiplyng...if you click in O2 you will see slimelung count ever decreasing (100,99,98...) but of nothing 1000 is added  and start decreasing again (1098,1097...) but him grow more fast than decrease 

 

[Outrate]

Never seems to be a problem to deal with Slimelungs. You just need to watch the pressure, so clean Oxygen would suppress anything else.

Meanwhile I found the source of biological weapon, one billion and 84 millions Slimelungs. Not sure what's going on here) 

The game doesn't limit many things in one tile. So it's impossible to build 25 tons material in one tile, but no problem in 500 tons of raw in the same tile.  

[avc15]

It's easy to control germs if you think about the mechanics.

If there's one tile of PO2, the slimelung grows exponentially in that tile, to some upper limit related to pressure.

Also every tick a percentage of the germs move out into all 4 adjacent tiles, and from those tiles to their adjacent tiles.

Germs die in the O2 but they replenish by flowing out of the PO2, where they're growing exponentially. You get an "equilibrium" eventually.

So basically with a small pocket of PO2 inside some oxygen, if you let the germs stabilize you will have a large area of something like 6,000-15,000 germs floating around your base (depending on pressure and how many tiles of PO2). The germs keep growing on PO2 but they're flowing OUT into nearby O2 where they're dying. You have a germ source so your O2 never becomes germ free.

example time!

a corridor my dupes sometimes use has a  patch of PO2 that seems far away. The whole area has germs even though the corridor is only clean O2. The PO2 acts as a germ source keeping the germs from going away, even though they're dying in the O2.

... Depending on pressure, the tiles of PO2 grow germs and stabilize anywhere from 6,000 to 15,000 germs

The clean oxygen around it never becomes germ-free because germs keep flowing OUT

Germs die in O2 but they replenish by growing in the PO2 and flowing into the O2.

So what do you do? Once PO2 inside your base gets infected with slimelung you have to clean it ALL up. If it's a very small amount you can just wait until your dupes breathe it all up (serious). If it's a bit much, make a temporary change - putting in a deodorizer is usually enough.

But if your base is germ-free, it's ok to let some items offgas PO2. terrariums and their bottle drops, etc. Completely safe to breathe.

[SakuraKoi]

3 hours ago, Outrate said:

Meanwhile I found the source of biological weapon, one billion and 84 millions Slimelungs. Not sure what's going on here) 

Well, it's fixed in the preview already, if you can not wait, there is also a mod with which you have to load the save only once. Personally I did just dig&run, it worked~

 

but anyway, maybe my math is off but if slimelung grows by 300% (per cycle) in polluted oxygen and dies by 3% in clean one then it seems fairly obvious that it can keep 100 tiles infected

On 3.10.2018 at 11:32 PM, LeRS said:

I dont know if is a bug of the Rocktry version...but before...polluted oxyged rise up to base top like hydrogen making deodorizer life easy...

I still have polluted oxygen visible floating above O2 and it actually make deoderizing it more bothersome, after all, you can not attach the deoderizer on a ceiling so with the 5x5 area centered around the object, the range is only 3 (with the origin tile), making 4 tile high rooms have polluted oxygen stick to the ceiling. Luckily it still goes away over time due to the polluted oxygen sometimes slipping down.

[PhailRaptor]

11 hours ago, avc15 said:

Also every tick a percentage of the germs move out into all 4 adjacent tiles, and from those tiles to their adjacent tiles.

Are you sure?  Or perhaps that's how it works in Gas, but not on Solids (Slime).  Undug blocks of Slime with Slimelung on them will continually reproduce until they reach ~1M germs, at which point the Slime block in question will drop by ~100k and the surrounding 4 undug blocks will each receive ~250k germs.  The only time you will ever see undug blocks with more than 1M Slimelung germs are on a Slime block that is surrounded by other Slime blocks.

[avc15]

2 hours ago, PhailRaptor said:

Are you sure?  Or perhaps that's how it works in Gas, but not on Solids (Slime).  Undug blocks of Slime with Slimelung on them will continually reproduce until they reach ~1M germs, at which point the Slime block in question will drop by ~100k and the surrounding 4 undug blocks will each receive ~250k germs.  The only time you will ever see undug blocks with more than 1M Slimelung germs are on a Slime block that is surrounded by other Slime blocks.

I was talking about OP's specific situation, where a pocket of PO2 inside the base is producing germs.

When it comes to solids, you're correct. The biggest thing is that slime has a very high population limit and reproduction rate for slimelung germs. Overpopulation starts at around a million germs per tile but gets lower if temp gets too high or low.

A tile of PO2 gas hits its population limit 10k germs per kilogram (higher or lower depending on temp, again).

So, the equilibrium is MUCH higher than the situation I was describing (an area of mostly O2 with a small pocket of PO2 inside). And also in the current update, slimelung doesn't seem to be transferring to neighboring tiles in solids. iiiiiinteresting. Bug, or not?

 

[PhailRaptor]

1 hour ago, avc15 said:

And also in the current update, slimelung doesn't seem to be transferring to neighboring tiles in solids. iiiiiinteresting. Bug, or not?

In the current live version, it does everywhere except around the edge of the starter biome.  Are you on the preview, or live version?

[avc15]

Just now, PhailRaptor said:

In the current live version, it does everywhere except around the edge of the starter biome.  Are you on the preview, or live version?

preview.

germs aren't migrating out of slime. They just grow until they hit a population limit. Until you dig it out.

[PhailRaptor]

I'd go ahead and report it as a bug, then.  New behavior that is undocumented, and all.

[Outrate]

22 hours ago, SakuraKoi said:

Personally I did just dig&run, it worked~

It's absolutely safe even if you doesn't run away. I found this game too easy even with pessimistic dups.

Nobody here fighting for surviving or had to deal with dangerous environment expansion. It's sad actually. Where is no hostile critters, no darkness (at all, only light), no change of seasons.. it has a lot of potential, but I doesn't see even mods for this. =\

For 1000 cycles I got one or two dups sic, cause I bail on it. The only thing is hard to deal is cosmic before you can get enough of steel (especially then you dig outside to early).