Additional water change affect dosing schedule? - The Planted Tank Forum
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post #1 of 2 (permalink) Old 03-24-2015, 08:09 PM Thread Starter
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Additional water change affect dosing schedule?

I have a heavily planted fluval edge 6 gallon with moderate to high lighting and pressurized co2 and pretty much a full stock of fauna according to aqadvisor.

I built this schedule based on the recommended example regimen from Seachem.

My tank is pretty heavily stocked so I'd like to introduce another 50% WC midway during the week.

Two questions:

-Viewing the schedule I created, If i were to add a WC before I dosed on day 3 or day 4, would I need to alter anything else. Would my dosages need to go up at all? Would I need to add more products after the mid-week WC?

- I am not using Flourish Iron since I fear it will affect my shrimp negatively. I am also not using trace since I was talked out of it being necessary. Would you guys argue against these decisions based on my current regimen?

Thank you!
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post #2 of 2 (permalink) Old 03-24-2015, 09:58 PM
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A second water change will further halve all the levels in your water, if this is a concern, you might need to give a 'replacement dose' after the water change, or maybe increase your daily amounts to compensate.
This website ( )gives you an idea of the effects of water changes and doses on levels of ferts in your water - might be worth a look....
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