How many Oxyferns do I need for each Duplicant?

[MJRAHOLE]

Algae is scarce and I need to know how many Oxyferns I need to survive.

[MJRAHOLE]

Yes, I used Oxyferns as a source of Oxygen Source on a save once, and it kind of worked.

[Duke]

what you need to do is survive with oxyferns until you research electrolyzer. you only have so much oxyfern seeds in the beginning which wont be enough, guessing about 10 at most. until you find a water source, use the remaining water on electrolyzer.. this is what i experienced so far with those sort of maps.

[Shame]

It all depends on how much air each duplicant actually consumes, and they can vary! I was fairly certain that duplicants consumed 100g/s of oxygen... but it seems like it's actually 82.2g/s. Less if they have decreased air consumption, I have some duplicants with 61.7g/s and ONE duplicant with just 41.1g/s, I don't know, it's weird. But that's the number you have to look out for. Click on the stress brain icon, and you will be able to go through looking at each duplicant in order, one-by-one, with which you can see how much oxygen they consume.

If we assume that it is the average 82.2g/s (I don't take anyone with increased air consumption), then for each duplicant to GAIN oxygen, you would need a total of 4 planted oxyferns PER duplicant. With this in mind, you would eventually over pressurise with oxygen, so you might want to have a memory toggle in some way connected to keep at least one oxyfern or so blocked off until pressure goes down. Constant surplus of oxygen isn't always a good idea, you need to keep the pressure below 2000g/2kg of oxygen, otherwise you will start getting popped ear drums. I suggest keeping the pressure around the 1500g/1.5kg mark, as you have good surplus in case of a tragedy, but you won't be popping duplicants' ear-drums.

Planting around 4 per duplicant is assuming you have put the oxyferns inside farm plots/tiles and haven't just left pips to plant them. If you try the pip method, then you may need a significantly higher amount of these. Can't get the numbers right now without a pip planting one, so you would need to check yourself, but I believe it was 10 - 12 or so PER duplicant.

Really, I would just put them in hydroponic farm tiles, as then the water can be pumped via liquid pipes automatically without any duplicant time being wasted. So long as I can keep throwing dirt in them as well (would eventually use auto-sweepers for that). But the most space-effective method would be electrolizers + carbon skimmers, though it does require cooling eventually.

Here's the wiki page on them, it includes some statistics that I have mentioned here: https://oxygennotincluded.gamepedia.com/Oxyfern

[fractalgem]

Another tip-if algae is scarce, but you have a good supply of water, you can use the algae terrarium rather than needing to go straight for the electrolyzer-and then allow the polluted water bottles to offgas polluted o2 over time.

If there's no swamps or other source of slimelung, you don't even have to filter this into regular o2 with deodorizers.

[Fortune Calls]

Deodorizer is very easy to use, but a self powered electrolyzer is energy positive at around the same oxygen conversion efficiency. If you couple a heating pool with an electrolyzer then you would add base cooling in the overall setup.

[fractalgem]

Originally posted by Tactical Combat Peanut:

Deodorizer is very easy to use, but a self powered electrolyzer is energy positive at around the same oxygen conversion efficiency. If you couple a heating pool with an electrolyzer then you would add base cooling in the overall setup.

While that does get you a net power gain if set up properly, and the electrolyzer is better for the long haul because it's just so much easier to get infinite water, I did the math once. Using an algae farm gets you more total oxygen than using an electrolyzer and an oxygenator seperately, even if you deodorize afterwards.

The minimal infrastructure and research required makes it great for the early game too!

[Sheep]

3-4 per dupe.
3 oxferns make *almost* enough oxygen for 1 dupe considering they are submerged in CO2 100% of the time.

I had a game where I used oxfrens once (first time I tried verdante asteroid).
It works well if you have many heavy co2 producers. might be a bit tricky to set up the colony so all the co2 falls into the oxfren farms, and then make the oxygen come to the base, but if you manage to do this you will have resource-cheap way to produce oxygen. very effective for small colonies.

However, electrolyzers are one of the only ways to produce hydrogen, which is the best rocket fuel in the game, so if you are really looking late game you should set up electrolyzers and store the hydrogen as early as you can. and as by-product you get huge amounts of oxygen so you dont really need the oxfrens anymore...

[MJRAHOLE]

Originally posted by Sheep:

3-4 per dupe.
3 oxferns make *almost* enough oxygen for 1 dupe considering they are submerged in CO2 100% of the time.

I had a game where I used oxfrens once (first time I tried verdante asteroid).
It works well if you have many heavy co2 producers. might be a bit tricky to set up the colony so all the co2 falls into the oxfren farms, and then make the oxygen come to the base, but if you manage to do this you will have resource-cheap way to produce oxygen. very effective for small colonies.

I Think the best way to be efficient is to make towering colonies, not wide ones to save OF's

[AquaX]

Most world sees revolve around 1-2 factors;1) how fast can you find the natural gas and steam vents. 2)how fast you can research to electrolyzer.

[Angpaur]

Originally posted by MJRAHOLE:

I Think the best way to be efficient is to make towering colonies, not wide ones to save OF's

In what way a tower colony is more efficient than a wide one?

[MJRAHOLE]

Originally posted by Angpaur:

Originally posted by MJRAHOLE:

I Think the best way to be efficient is to make towering colonies, not wide ones to save OF's

In what way a tower colony is more efficient than a wide one?

Carbon Dioxide sinks

[Angpaur]

Originally posted by MJRAHOLE:

Originally posted by Angpaur:

In what way a tower colony is more efficient than a wide one?

Carbon Dioxide sinks

So in a wide colony it doesn't sink?

[AquaX]

It sinks but it would spread out wider than you might anticipate for. Co2 has the tendency to go down right and hydrogen goes upper left.