Evaporation in shrimp tanks - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 07-21-2011, 01:58 PM Thread Starter
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Evaporation in shrimp tanks

Hello fellow shrimp keepers,
I keep my tops of my tank as do most shrimp keepers here in California due to the darn heat. I do weekly WC on all my tanks on a regular basis. On my two shrimp tanks I use R/O water with added mineral solution. My question is about the topping of the Evaporation vs. the weekly water change. Keep in mind about in both tanks the shrimp are breeding like mad.

1 Do I need to keep the weekly WC while adding about 2 gallons of R/O 1 – 2 times a week?

2 Does anyone substitute there WC with a constant top off of the water?


3 By topping off the water, is it building up the TDS level?



Tank 46 gallon bow front shrimp tank:
3 – Otto’s
Lots of OEBT’s

Fluval Shrimp Stratum with drift wood and rocks
PH is around 6.8 and holding

Plants:
Heavily planted (plant package from a friend sorry don’t know the names)

Filter:
305 external Fluvial
Seachem PhosGuard
Seachem Matrix Carbon
Ceramic rings
Seachem Bio-Matrix
Peat moss
Water polishing pads

Fertilizer per directions on bottle:
Seachem Flourish Iron
Seachem Flourish Nitrogen
Seachem Flourish Potassium
Seachem Flourish Phosphorus
Seachem Flourish Excel
Seachem Flourish

Lighting:
Runs about 7 hrs a day. (2) T5 21W bulbs (1) white and (1) blue.


7.9 EBI nano shrimp tank:
Crystal Reds


Fluval Shrimp Stratum with drift wood and rocks
PH is around 6.8 and holding


Plants:
Christmas moss (moss wall)
Creeping Jenny
Java moss on rocks
Dwarf hair grass


Lighting:
Will run about 7 hours 26W.


Fertilizer per directions on bottle that I currently use for other tanks:
Seachem Flourish Iron
Seachem Flourish Nitrogen
Seachem Flourish Potassium
Seachem Flourish Phosphorus
Seachem Flourish Excel
Seachem Flourish
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post #2 of 12 (permalink) Old 07-21-2011, 02:18 PM
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Top off the tank inbetween wc's with pure RO water.

Also, don't use excel if you have shrimp.

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post #3 of 12 (permalink) Old 07-21-2011, 02:20 PM
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And get a tds meter, they're like $15 on ebay, definitely necessary. See if you can find one with the calibrating solution. That'll tell ya everything you need to know ^^

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post #4 of 12 (permalink) Old 07-21-2011, 02:31 PM Thread Starter
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Quote:
Originally Posted by HolyAngel View Post
Top off the tank inbetween wc's with pure RO water.

Also, don't use excel if you have shrimp.


Thanks for replying so soon HolyAngel

Why not? I have been using excel for almost a year and I have had no problem. Please explain your statement. I do the recommended dosage and I also make sure not to ever over dose. I don’t have a CO2 system.
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post #5 of 12 (permalink) Old 01-11-2012, 02:00 PM Thread Starter
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I did get the TDS meter and that was a great purchase. I am having problems with my Gh rising. The tank is an open top tank so there is evaporation. I top of with straight RO during the week. Some of my Anubius plants are anchored down with shards of slate rock with zip ties. I have some SS mesh and ceramic breeding tubes. I have stopped the fertilizing just to see if it was that raising the Gh, but found out it was not the case. I don’t know what is raising my Gh.
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post #6 of 12 (permalink) Old 01-11-2012, 02:06 PM
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Excel is known to have a bad effect on shrimp. In fact it's best not to fertilize your tank at all if you want maximum growth and breeding from your shrimp. For my tank I just keep a top on it and don't have to fill or top it off for a good month and the water level stays the same.


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post #7 of 12 (permalink) Old 01-11-2012, 05:13 PM Thread Starter
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Quote:
Originally Posted by jkan0228 View Post
Excel is known to have a bad effect on shrimp. In fact it's best not to fertilize your tank at all if you want maximum growth and breeding from your shrimp. For my tank I just keep a top on it and don't have to fill or top it off for a good month and the water level stays the same.

That would be great to leave the lid on, but here in California and having a penny pinching wife forces me to have a fan on the tank at all times. I have stopped with the fertilizers in the tank and need to adjust the light timer. I am starting to get BBA on my Anubius and driftwood. I just don’t know why I am always fighting a rising Gh level. Is it the state, evaporation, zip ties? Although if I am just putting in straight RO that has a 0 Gh level going in, why is it going up in the tank?
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post #8 of 12 (permalink) Old 01-11-2012, 05:15 PM
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The slate rock is most likely raising the gh. You could test It by taking it out(or have a spare piece laying around) and pouring vinegar over it. If it fizzes at all it's raising your parameters.

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post #9 of 12 (permalink) Old 01-11-2012, 05:45 PM
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If your evaporating a lot of water, and I assume you are with the fan usage, I'd say that's the main cause for your increase. For the BBA, decrease your lighting and increase wc frequency. Use straight RO for topoffs. If you do 2x weekly wc, there should be little need to topoff. This will remove organics and lower your GH as well. Remove as much BBA as you can physically. Spray removable objects with H202 or Excel outside the tank. Can be done inside as well via spot treatments. There's more risk involved with shrimp though.

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post #10 of 12 (permalink) Old 01-11-2012, 08:43 PM Thread Starter
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Quote:
Originally Posted by HolyAngel View Post
The slate rock is most likely raising the gh. You could test It by taking it out(or have a spare piece laying around) and pouring vinegar over it. If it fizzes at all it's raising your parameters.
I have a feeling that your right... I have some pieces laying around.. I will do it when I get home. I'll let you know. Thanks
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post #11 of 12 (permalink) Old 01-11-2012, 08:53 PM
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I thought slate was supposed to be neutral, and one of the only shrimp safe rocks along side lava rock?
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post #12 of 12 (permalink) Old 01-13-2012, 04:46 PM
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Quote:
Originally Posted by jkan0228 View Post
Excel is known to have a bad effect on shrimp. In fact it's best not to fertilize your tank at all if you want maximum growth and breeding from your shrimp. For my tank I just keep a top on it and don't have to fill or top it off for a good month and the water level stays the same.
What bad effects are you talking about? I use flurish excel in my Pumpkin shrimp tank almost every day with no ill effect.

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