Poll: Weekly/bi-weekly water changes & algae
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View Poll Results: Non-CO2 Tanks: Do You Do Weekly/Bi-weekly Water Changes and Battle Algae?
Weekly/Bi-weekly Water Changes and Algae 4 11.43%
Weekly/Bi-weekly Water Changes and No (or little) Algae 23 65.71%
Water Changes Every Few Months Or Longer and Algae 1 2.86%
Water Changes Every Few Months Or Longer and No (or little) Algae 7 20.00%
Voters: 35. You may not vote on this poll

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Old 10-27-2008, 04:57 AM   #1
KDahlin
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Poll: Weekly/bi-weekly water changes & algae


This poll arose as a result of this thread: http://www.plantedtank.net/forums/lo...anges-non.html

The question is for non-CO2 tanks. If you do weekly/biweekly water changes and you have algae, please post how much water you change and how significant is the algae.
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Old 10-28-2008, 04:43 PM   #2
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I do water changes more like once a month, but I don't get algae from them, and I have very low tech set-ups. I dose ferts when I remember which weekly at most.
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Old 10-28-2008, 05:48 PM   #3
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As a side to my 72 gal high tech tank I have an older 10 gal that gets maybe 1/8th t. of PPMD dry fert once every week or so, and maybe 1ml of Excel every other day or so, perhaps a capful after a water change. It's got an Eclipse filter/light hood with 2x18W T8's. Sometimes I change the water 20-30% every week, sometimes I go 4-6 weeks with no water change and then do a 50-60% change. Other than a small bit of GBA (green-beard algae, a good kind that looks very nice actually) on a couple of small rocks I have in there, I have not had any algae issues of any kind in probably 2 years. Fish bioload: 1checkboard cichlid, 4 paraguayensis tetras, 1 old, crusty neon tetra (I swear I think he's at least 7 years old now), 1 Cory aeneus, and about 8-10 little Endler's. Oh, and one African Dwarf Frog (who's about 2 years old now). I also have snips and cuttings from my larger 72 gal tank I throw in the 10 gal including some mosses, a few crypts, some H. polysperma 'sunset', a few small Rotalas and some pennywort and some H. difformis. The thing is stable as all heck. I test every once and a while and ammonia is always zilch, though Nitrates and Phosphates are a little high....(shouldn't I have algae because of that???? Oh, well)

So I cannot really answer the poll as I do not do it regularly enough to fall into one category of an answer.
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Old 10-28-2008, 10:24 PM   #4
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With my 5.5g (sponge filter, Hampton Bay 27W), I change a gallon every weekend. I don't have any algae so I don't have to remove any.
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Old 10-29-2008, 02:40 AM   #5
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I change 20% every 2 weeks or so. Some algae, but not a lot as long as I watch my photoperiod. If I get over 8 hours then the algae will start to get out of check. I also have a dozen Amanos and another 8 or so Otos in the tank (90gal).
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Old 10-29-2008, 04:57 AM   #6
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I change every month or every other month at about 50-60% then my fish (all of them) breed. Its insane to watch all this action going on in the tank.
I do have algae but thats because of flow problems (cyno) and where the sunlight is hitting the tank i have bad algae but everywhere else is fine although i didnt do a WC for 3 months or something like that and i wasent dosing (total neglect) and i got a bad diatom outbreak. It was nasty. Now its comming back nicely.
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Old 10-29-2008, 05:20 AM   #7
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Water Changes Every Few Months Or Longer and No (or little) Algae

About 10% every month or so, just to have something to swish the filter media in, and to vacuum up detritus. Depends on N depletion/buildup though. The current non-CO2 tank still requires some N every now and then, if it were building up I'd do water changes more often. The only algae is some green hair growing in a wad of floating HM (3+wpg), this particular tank has been established and stable for over 3 yrs now.
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Old 10-29-2008, 06:12 AM   #8
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I think Excel should be excluded from this discussion, especially people who use the large WC dose of excel. As since I started using it I dont worry about the water changes and can do them frequently w/o algae issues.
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Old 10-29-2008, 10:26 AM   #9
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I do water changes 25% twice a week no exceptions, regardless of dosing and CO2.
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Old 10-29-2008, 11:51 PM   #10
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Quote:
Originally Posted by SpeedEuphoria View Post
I think Excel should be excluded from this discussion, especially people who use the large WC dose of excel. As since I started using it I dont worry about the water changes and can do them frequently w/o algae issues.
Yeah, I wondered about that. I wonder how many people who do frequent water changes with little or no algae use Excel. For me personally, using Excel made my algae worse but I don't think that's the typical experience with it.
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Old 10-30-2008, 01:02 AM   #11
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Default Algae and Water changes

For the 3 tanks that I don't use CO2 or excel on, I don't do water changes but maybe every 2 months or so and then only about 30%. Tanks are topped off once a week. Two are shrimp and snail tanks, one is a shrimp, endler, cory and snail tank and all are medium to heavily planted. The only algae I get is green dust on the glass (baby shrimp love to snack on it) and green spot on some of the slower growing plants. I infrequently dose macros and micros now and then. All tanks are healthy and I usually trim the "fast" growers every couple of months prior to a partial water change.

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Old 10-30-2008, 06:07 AM   #12
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I don't use excel in my non CO2 tank. The whole point of it is low maintenance, and daily additions of anything but fish food doesn't fit the bill.
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Old 10-30-2008, 06:30 PM   #13
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I change 20% every two weeks on both my 15g and 30g.

The 15g (NO Algae) does not get any fertz, excel or anything. Sometimes I let it go for 3 weeks/20%. It has two 13w slim tubes (over a year old now). It has a Crypt, A. nana, A. Barteri, some moss (not many plants). It is stocked to the limit with female guppies and many Ram's horn snails. It is in a cool room with no sun light.

The 30g (some algae) gets Easy-Carbo (similar to excel), 1ml everyday. 1/2 does of Fertz with the bi-weekly water change. Medium to Heavily planted. Stocked to the limits with male guppies, 1 green neon tetra, dwarf shrimp and many Ram's horn snails. This tank just had an algae bloom after an upgrade in lights from 1.3 to 2 wpg about a month ago. Reduced photo period from 11 to 9 hrs and removed what algae I could. The algae is going away now and fauna and flora are doing good.
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