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120 Gal Dutchy Freestyle - Now with 35% less water volume!

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So this is a journal for my new 120, which replaces my long running 75 gallon. For anyone who followed the previous tank, this one will be basically the same style with just a bigger footprint.

First planting, about 2 months ago.




Tank

48" x 24" x 24" Marineland 120 gal


CO2

GLA Grow 1 regulator, 10 lb tank.

DIY PVC reactor. Main pipe is 3" x 24"



CO2 cuts on 90 min before the lights, goes off 1 hour before. PH drops 1.1 by lights on, proceeds on down 1.3-1.4 at peak. Livestock are fine at this level, heavy flow and good surface agitation helps.


Filtration

Two canisters: 1 Aquatop CF 500, and 1 Hydor Pro 600

Measured flow combined is about 600 gph.

1 Koralia Nano 425 for added circulation

Both canisters have SunSun intakes with the skimmer

Left corner is the the Aquatop. Using a 1" outflow pipe to reduce velocity (the in-tank flow is crazy!)



Right corner is the Hydor. The CO2 runs inline with this one.





^also you can see my LED night lights, mounted on each end of the main fixture.

Substrate:

Black Diamond blasting sand


Lighting

6 bulb T5HO hydroponic unit

https://www.amazon.com/Agrobrite-Designer-FLP46-6-Tube-Fixture/dp/B002TJQ61W



Bulbs are front to back:

TrueLumen Flora
Agrobrite 6400K
Zoo-med Flora
Plantmax 3000K
ATI Purple
TrueLumen Flora

Fixture is 9" above the tank, PAR at the sub is around 120. Having lots of red bulbs help keep it down, not to mention awesome color rendition. PAR would be a lot higher at this distance with more 6500Ks, for example


Ferts

Macros 3x week
7.5 ppm KNO3
1.3 ppm K2PO4
3 ppm K2SO4 (for 6-7 total K)

Micros 3x week
.015 Fe from csmb
.02 ppm Fe dtpa

** Micros are more now because Im rolling my own instead of using csmb. Will update the amounts once I arrive at the sweet spot.

50%-60% water change every 6-7 days

Livestock

25 Harlequin Rasboras, will soon get this up to maybe 30 or so
6-7 otos
Trio of young German Blue Rams, just coming into their adult colors
10-12 Amano shrimp


Here's the latest rendition. Plant groups are no way shaped for height or footprints. Mainly just tentative placeholders of where things are going to be. Have lots of ideas to try, and open to any suggestions! :)




Detailed plant pics to follow....
1901 - 1912 of 1912 Posts

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Discussion Starter · #1,901 ·
Any guesses as to why your tank needs so much P since normal EI levels are only about 3ppm?
Well..if youre comparing it to standard EI, which is 1.3 ppm 3x per week, for a total of 3.9 - along with 50% water changes, you will eventually be rolling with close to 8 in the water due to accumulation. I change nearly all the water and go back with 9. So its not as much as it sounds like when you factor in wc volume
 

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Discussion Starter · #1,904 ·
I'm guessing the new toy is an RO unit....finally! :)

Tanks look great as always
Haha, thanks man. New toy is the 75p. I have too many tanks to mess with RO...couldnt afford the water bill lol
Do you mind sharing the rest of your micro recipe? I've been using the same recipe for last 2 years but am always looking to tweak it
Fa sho. Probably a little more Fe now relative to everything else

Fe DTPA - .13
Fe gluc - .04
Mn - .029
B - .027
Zn - .025
Cu - .0022
Mo - .0011
Ni - .00012 (optional)

I dose that 3x week, first one right after wc. Have done half daily. Cant really tell a difference but doing these big wc I like going back with a bigger dose right after
 

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Discussion Starter · #1,907 ·
Yeah I would say that's presentable, :D

Question, on the Rotala SG, I bought this plant a little while back and it's the only thing I have struggling somewhat. I'm using tap, inert and have a KH of 4.
I remembered we have similar water from when I bought those nice shrimp from you a few months ago. They're in the actual Dutch btw. I threw 10 more fire reds from a different source in there to tighten up the bloodline...done had a few babies :)

I use straight tap with KH ~5, these are in sand but it grows about the same in soil. It can be a finicky plant, quick to stunt if it doesnt like something. On any given day I probably have 1 out of 9-10 that is stunted. Thats about as good as I can grow it and I just pinch those off and let new side branches come in. Dont show them in pics and dont sell them, lol. Thats how I solve it!

Now if yours are doing worse, say 50% or more stunted...idk. Probably needs a little more something. In my set ups it tends to balk at too little, not too much

Either way its not your KH or inert sub. Clean tank and good co2, Im sure you have that too. Light I run about 120-130 uMol at the sub, no idea what it would do under more or less
 

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I remembered we have similar water from when I bought those nice shrimp from you a few months ago. They're in the actual Dutch btw. I threw 10 more fire reds from a different source in there to tighten up the bloodline...done had a few babies :)

I use straight tap with KH ~5, these are in sand but it grows about the same in soil. It can be a finicky plant, quick to stunt if it doesnt like something. On any given day I probably have 1 out of 9-10 that is stunted. Thats about as good as I can grow it and I just pinch those off and let new side branches come in. Dont show them in pics and dont sell them, lol. Thats how I solve it!

Now if yours are doing worse, say 50% or more stunted...idk. Probably needs a little more something. In my set ups it tends to balk at too little, not too much

Either way its not your KH or inert sub. Clean tank and good co2, Im sure you have that too. Light I run about 120-130 uMol at the sub, no idea what it would do under more or less
how long did it take your samo red to look big and send runners?
 

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I remembered we have similar water from when I bought those nice shrimp from you a few months ago. They're in the actual Dutch btw. I threw 10 more fire reds from a different source in there to tighten up the bloodline...done had a few babies :)

I use straight tap with KH ~5, these are in sand but it grows about the same in soil. It can be a finicky plant, quick to stunt if it doesnt like something. On any given day I probably have 1 out of 9-10 that is stunted. Thats about as good as I can grow it and I just pinch those off and let new side branches come in. Dont show them in pics and dont sell them, lol. Thats how I solve it!

Now if yours are doing worse, say 50% or more stunted...idk. Probably needs a little more something. In my set ups it tends to balk at too little, not too much

Either way its not your KH or inert sub. Clean tank and good co2, Im sure you have that too. Light I run about 120-130 uMol at the sub, no idea what it would do under more or less
'

Glad the shrimplets are doing well for you!

Yep, your right our water parameters are close and thanks much for confirming it's not the KH and the inert base. For some reason I can't get Vin's Rotala Kill info out of my head with the high KH/EI. I haven't purchased that many SG variants so wanted to make sure I wasn't missing something there. Since I posted, I increased my co2 a bit and things are looking better. One in 10 stunted isn't bad, I was running more like 5 in 10, but I won't post them either :D

Thanks again!
 

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Discussion Starter · #1,910 ·
how long did it take your samo red to look big and send runners?
Its relatively fast for a rosette. A young juvenile plant will be pretty fat in a month. It doesnt really send runners, not like Nymphaea sp, etc. New babies come from the main base, more like a Crypt or Compact Hygro. When they start getting too thick I pull them up and pare the babies off then replant

Now.. I have had it throw a 4"-5" runner up in mid air with a new baby on it, kinda like a sword plant does. But thats only happened once or twice. Normally they just make new ones from the base.
 

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Joe, sorry if there is a discussion somewhere else about your AGA tank, I can't find it. Anyway, I think your submission is awesome. It reminds me of the old pictures of Dutch tanks with the varying leaf shapes and subtle colors. It's really well done. Have to say I'm surprised you didn't win this one.
 
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