Feeding after a WC.

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CrimsonFog

Piranha
MFK Member
Apr 2, 2012
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Warshingtun
What are the affects (good and/bad) of food consumption after a large (75-90%) WC?

I'd like to hear the theories.

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Feeding the fish would cause them to poo which would jump start re-establishing the nitrogen cycle, but would also risk causing an ammonia spike.

Why would you do such a massive water change? It's far better to do a series of small water changes (20% every two days roughly) every other day. It allows the tank to stay properly cycled while removing whatever harmful thing you're trying to correct.
 
I would only worry if they dont eat after a wc although I try to feed mine before a wc so they leave my fingers alone lol

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U will b fine i do 80% water changr every Wednesday. U have to understand that most of the bb will be in the substrate driftwood filters etc...there are far more bb in these things then jus free floating bb. If u check out my sig i have a pretty heavy bio load i havent had a mini cycle yet. It basicly comes down to the person who does the wc do they wanna do 20% every 2 days or one large wc weekly.

240 gallon aquariun. 300 gallon wet/dry filter with 1 Fluval fx5.
stock:
1x male 12 inch Frontosa, 4x13-19 inch florida gars,12inch Longnose gar,6 inch motoro stingray,9 inch delhezi ,7 inch texas cichlid,15 inch tiretrack eel,16inch clown knife, 3x 14-17 inch hybrid peacock bass! :cool-1::cool-1::headbang2:headbang2
 
I would only worry if they dont eat after a wc although I try to feed mine before a wc so they leave my fingers alone lol

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I normally do a 40-50% WC once a week. I personally believe there's no reason to do a bigger one than that, but to each his own. My fish normally are willing to eat about 10 minutes after I'm done filling it back up.

U will b fine i do 80% water changr every Wednesday. U have to understand that most of the bb will be in the substrate driftwood filters etc...there are far more bb in these things then jus free floating bb. If u check out my sig i have a pretty heavy bio load i havent had a mini cycle yet. It basicly comes down to the person who does the wc do they wanna do 20% every 2 days or one large wc weekly.

240 gallon aquariun. 300 gallon wet/dry filter with 1 Fluval fx5.
stock:
1x male 12 inch Frontosa, 4x13-19 inch florida gars,12inch Longnose gar,6 inch motoro stingray,9 inch delhezi ,7 inch texas cichlid,15 inch tiretrack eel,16inch clown knife, 3x 14-17 inch hybrid peacock bass! :cool-1::cool-1::headbang2:headbang2

Well, with a 240 gallon tank, a 300 gallon sump and an FX5, unless you completely drain your tank AND half of the sump, you're not doing an 80% WC. If you completely drain your tank but leave water in the sump, that's only a 44% water change of your total capacity of 540 gallons. So, if you're taking 80% of the water out of the main tank (192 gallons), but not touching the filtration water, you're only doing a 35% water change. So, you're still well within the 50% limit that I personally feel is acceptable.
 
I drain my tank and wet/dry

240 gallon aquariun. 300 gallon wet/dry filter with 1 Fluval fx5.
stock:
1x male 12 inch Frontosa, 4x13-19 inch florida gars,12inch Longnose gar,6 inch motoro stingray,9 inch delhezi ,7 inch texas cichlid,15 inch tiretrack eel,16inch clown knife, 3x 14-17 inch hybrid peacock bass! :cool-1::cool-1::headbang2:headbang2
 
Its nt a sump its a wet/dry rated for 300 gallons

240 gallon aquariun. 300 gallon wet/dry filter with 1 Fluval fx5.
stock:
1x male 12 inch Frontosa, 4x13-19 inch florida gars,12inch Longnose gar,6 inch motoro stingray,9 inch delhezi ,7 inch texas cichlid,15 inch tiretrack eel,16inch clown knife, 3x 14-17 inch hybrid peacock bass! :cool-1::cool-1::headbang2:headbang2
 
It's all preference, 2x40% per week or 1x80% per week. I notice after my 1x50% wc per week they get a little stressed, there is no way to 100% buffer the new water, I feed 1x/week and do a wc the day after, that way they ate, they poo'd now their water will stay cleaner imo. I'm sorry but I can't see the point in doing a large wc to just feed right after, but to each his own.

I have gone the pothos route to keep my n03 lower and I must say it works very well, consuming about 15-20ppm per week:

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Go S. Vettel #1 rb8
 
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