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Old 08-05-2014, 09:19 PM   #1 (permalink)
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2nd small grow

I have 4 (under 3") smalls in a 3 gallon hydro set up its a tank and air stone type. I have 2 questions this time around. 1, how often should I completely replace the water nutrient mix 2. should I get a larger air pump or could it hurt the roots? Thanks.
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Old 08-06-2014, 01:42 AM   #2 (permalink)
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1. The general rule of thumb is every 2 weeks, but 3 gallons is teeny tiny. I'd start with every week and go from there. The smaller the tank, the more often you need to do a water change.
2. I think that even the smallest aquarium air pump is sufficient for a 3 gallon tank. I don't think a larger pump would hurt the plants, it just wouldn't help either.

Hope that helps!
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Old 08-06-2014, 09:27 AM   #3 (permalink)
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I agree that every week is a good change cycle on that I go every 2 weeks with mytanks and they are about 5 times bigger than yours is.

And might I say pics or it didnt happen lol.

And depending on the strain and the size of your lights you may want more or less plants.

Last edited by godneal; 08-06-2014 at 10:45 AM. Reason: adding info
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Old 08-08-2014, 07:54 AM   #4 (permalink)
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Used to be able to post pics but cant seem to now, last grow I only added water and changed 1 time during growth stage and never changed in flower
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Old 08-08-2014, 07:58 AM   #5 (permalink)
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uour plants and pumps will thank you for the multiple changes. It will help keep build up of salts in the watter and on the pump form happening. Also ot helps prevent nutritional lockout on your plants. And helps provide better nutrition to your plants.
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Old 08-09-2014, 09:10 AM   #6 (permalink)
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Growers Trick for small hydro's

If you are going to run something that small, you might consider having a 10 gal fish tank near by. take your water out of the plant reservoir weekly and replace with micro nutrient rich fish water. Add fresh water to the fish weekly. Everyone will love it. Ever seen buds that look like pineapples. You will!
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Old 10-23-2014, 12:50 AM   #7 (permalink)
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Yes you always want to use a bigger pot than you would think, so later on do don't have to uproot the plant and put it someplace bigger (which causes tons of stress).
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