transpire less?
funny...if you add co2 in a planted aquarium, you can see the oxygen coming off the plant, its called pearling and is very beautiful.
average co2 content in a fishtank is 3-4 ppm without added co2, many folks inject 30 ppm, some even go as far as 45 ppm, without harmful effect.
without the added co2, plants grow slow in aquariums. some will not grow at all *i read*
so apparantly aquariums have less co2 than most normal standing bodies of water.. or that its the sun that makes up for the co2 lack today.
i think this 3-4 ppm is normal though, having fish does not add a signifigant amount of co2 to the mix, so that makes me wonder if talking to plants works because they are listening
not breathing much.
ive read that with excessive amounts of co2, lights and ferts, that it gets difficult to even see the waterplants...*now whether thats true i dont know, have no way to test that, ive only got moderately high amounts of the 3, but i can almost believe it having seen the effect co2 has on the planted aquarium.
but i dont want to really spend the money on it just to see it,
*i dont really like the idea of pruning the fishtank every day
*
i think you should just start small on the co2...just a little bit, watch the plants, little bit more.
go by your plants, not what you read.sure you can go with the standard and calculate it into your room, but then you will never know what is the optimum for your plants, we dont all have equally good lungs.. strains are different too in all respects more or less.
add till you stop seeing any difference, cut back till you see a difference, having marked 'the place in between'.
when the plants are larger, try adding some more..
there is no sense in just blasting the room with co2, after all, it is poison gas...*same as oxygen really, too much will kill you, but co2 much faster and deceptive, sleepy? ok bye bye*
highly doubtful you will kill anyone though
im interested in using co2 myself on the mj, but cabdesign prevents effective use, so till i design a new one..