Stuck in reef mode, need a kick - The Planted Tank Forum
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post #1 of 25 (permalink) Old 02-05-2019, 10:08 PM Thread Starter
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Stuck in reef mode, need a kick

So i'm used to dealing with a reef tank and it's nutrient requirements. I know nothing of the requirements for planted tanks.
I know in a reef ULNS, im looking for the following:
Phosphate .1 - .2

Nitrate 3-5
CA 450 -575 (depending on a few factors)
Mg - ~1300

etc.


What is the equivalent in the planted tank world?
I'm looking for a decent baseline to start from and tweak as necessary.

For instance i ordered some Thrive S and it states 1 pump per 5 gallons. But that really doesn't tell me what ideal levels should be. If i have a low plant load, is 1 pump too much? if i'm heavily planted is 1 pump to little?
I read through the faq in this section and really didn't see anything that spelled it out for me.


In a reef i can base much off of Ca. If im using X amount of Ca a day, i add X amount of other nutrients in addition to my Ca to keep things stable.


Thanks
-Rich
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post #2 of 25 (permalink) Old 02-06-2019, 01:55 AM
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If I were asked to prepare water for a planted tank these would be my parameters to start with.

GH of 5-6
KH of 1
Ca to Mg ratio of 4:1, 20ppm:5ppm

NO3:PO4 is typically 10:1 so I'd target 20ppm:2ppm

Micro nutrients solution are measured with Fe as the indicator.
I target .3ppm Fe in the water column @ all times.

I've never had a targeted pH level.
At least a 1.0pH drop from injected CO2.

PAR @ substrate of 75-100 in a new tank.

This is only a starting point and does not consider weekly/daily dosing.
Meaning my water is suitable to put in the plants.

Hope this helps in some way?
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post #3 of 25 (permalink) Old 02-06-2019, 03:37 AM Thread Starter
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It does. That is pretty much what i was looking for.
from that i can set my baseline, determine consumption, adjust dosages, etc.
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post #4 of 25 (permalink) Old 02-06-2019, 01:49 PM
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20 Ė 30 ppm Ca => 2.8 Ė 4.2 dGH
5 ppm Mg => 1.1 dGH
Total 3.9 Ė 5.3 dGH
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post #5 of 25 (permalink) Old 02-14-2019, 12:52 AM Thread Starter
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Ok i think i need some help with my math. Someone who is versed in these conversions, please look over my work and see if i am doing anything wrong.

Tank parameters
GH: 12
KH: 5
CA: 35
MG: 31????????
Po4: .25
No3: 20ish
TDS 251
My assumption is 10ppm Ca=1.4 Gh so 3.5*1.4 = 4.9, GH is 12, so 12-4.9 is 7.1.
Second assumption 1ppm Mg = .23gh. so 7.1/.23 = 30.86 So my Ca/Mg ratio right now is 1:.857
Is my math correct?
And my No3:Po4 is way off too. My Thrive S has Mg in it as well. So that will only add to the Mg overage.
Will brightwells NeoPhos work to get my phosphate up?

It's obvious i have some water parameter issues to deal with
ironically after the cycle the entire tank was changed with 100% RO/DI water. But i think what is happening here is there was a bunch of tube worms and corraline algae on the equipment and the low ph from Co2 is causing that to leech back into the water column.

Ohh and Edward, I've read some of your other posts. I'd love to be able to do a brain dump from you.
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75 gallon reef to planted tank conversion. Definite work in progress! TJ Here
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Last edited by Rich Decatur; 02-14-2019 at 01:04 AM. Reason: Giving Edward props
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post #6 of 25 (permalink) Old 02-14-2019, 01:53 AM
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((17.86 x dGH) - (2.5 x Ca ppm)) / 4.1 = Mg ppm

((17.86 x 12) - (2.5 x 35)) / 4.1 = 30.93

Yep!

1.13 : 1 ???
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post #7 of 25 (permalink) Old 02-14-2019, 04:50 AM Thread Starter
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Thanks MG for the confirmation.

75 gallon reef to planted tank conversion. Definite work in progress! TJ Here
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post #8 of 25 (permalink) Old 02-14-2019, 02:32 PM
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For back checking dosing rates, dKH, dGh, etc, try using the Rotala Butterfly calculator. It's very handy and helpful.

Also, the 2 Hour Aquarist has a great site on dosing, Rotala Butterbly usage, and planted tanks in general. Well worth reviewing.
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post #9 of 25 (permalink) Old 02-14-2019, 04:05 PM
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Please tell me you had a sump and you're keeping it.

Planted S. Am. Waterbox 190 (141G dispaly w/sump & stand)
{new - in progress }
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post #10 of 25 (permalink) Old 02-14-2019, 04:27 PM Thread Starter
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Quote:
Originally Posted by Cichlid-140 View Post
Please tell me you had a sump and you're keeping it.

Indeed. Trigger systems amethyst 34

75 gallon reef to planted tank conversion. Definite work in progress! TJ Here
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post #11 of 25 (permalink) Old 02-14-2019, 05:37 PM
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Quote:
Originally Posted by Rich Decatur View Post
Indeed. Trigger systems amethyst 34
Nice. What style overflow (Durso, Herbie, BeanAnimal, Etc.)?

Planted S. Am. Waterbox 190 (141G dispaly w/sump & stand)
{new - in progress }
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post #12 of 25 (permalink) Old 02-14-2019, 05:54 PM Thread Starter
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Quote:
Originally Posted by Cichlid-140 View Post
Nice. What style overflow (Durso, Herbie, BeanAnimal, Etc.)?
And for the big let down....
CPR CS102 overflow in Herbie

75 gallon reef to planted tank conversion. Definite work in progress! TJ Here
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Last edited by Rich Decatur; 02-14-2019 at 05:55 PM. Reason: Goobered
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post #13 of 25 (permalink) Old 02-14-2019, 05:59 PM
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Quote:
Originally Posted by Rich Decatur View Post
And for the big let down....
CPR CS102 overflow in Herbie
Not a let down. My first Herbie was on an Eshopps PF-1000. Gate valve or Ball?

Planted S. Am. Waterbox 190 (141G dispaly w/sump & stand)
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post #14 of 25 (permalink) Old 02-14-2019, 06:16 PM
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Don't chase water parameters unless you planning on keeping very specific shrimp. In a pure planted tank it doesn't matter much and just use tap water with a fertz schedule. It's not important because you do a reset once per week or so with 50% water change anyway.

Light, co2, substrate, and fert schedule is what's most important.

Thrive S gives you a ballpark because it assumes you are doing the weekly water reset. Chasing numbers in planted tanks unlike reef tanks is the worst thing you can do. Take it from me who used to do reef tanks and was obsessed with ULNS and as much automation as possible.
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post #15 of 25 (permalink) Old 02-14-2019, 07:30 PM Thread Starter
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Quote:
Take it from me who used to do reef tanks and was obsessed with ULNS and as much automation as possible.
I will try to break that mindset. I wont lie, i think it's going to be tough
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75 gallon reef to planted tank conversion. Definite work in progress! TJ Here
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