100G Iwagumi tank - Page 2 - The Planted Tank Forum
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post #16 of 38 (permalink) Old 09-22-2017, 09:35 PM
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I have to agree with everyone, the stones are way to small for a 100 gallon tank/Iwagumi layout. I got bigger ones in a 20 gallon.


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post #17 of 38 (permalink) Old 09-23-2017, 10:31 AM Thread Starter
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Originally Posted by HenrySheehan View Post
Hi.

For a tank that size I still think you need larger rocks. Once your plants start to grow I count it that 4 rocks will be visible and the rest won't. I know in an Iwagumi styled tank you can sacrifice a rock or two but you're going to be left with 4 rocks visible which is a unnatural amount. What length is your tank?

Bigger rocks needed I believe.


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Originally Posted by Powerclown View Post
I have to agree with everyone, the stones are way to small for a 100 gallon tank/Iwagumi layout. I got bigger ones in a 20 gallon.
thank you for the feedback. this is a 5' tank. i have replaced some rocks with bigger ones and will make an update as soon as HC grows better.
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post #18 of 38 (permalink) Old 09-23-2017, 10:36 AM
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I have a iwagumi tank been set up at the moment, 1356060cm and I've around 75kg of seiryu stone in it. My large stone comes up to just above two thirds in height. It's about 40kg itself.

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post #19 of 38 (permalink) Old 09-23-2017, 12:24 PM Thread Starter
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Originally Posted by HenrySheehan View Post
I have a iwagumi tank been set up at the moment, 1356060cm and I've around 75kg of seiryu stone in it. My large stone comes up to just above two thirds in height. It's about 40kg itself.

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that is a lot of stones. can't wait to see it.

Quick video update:

https://www.youtube.com/watch?v=FHBiJum-324

- I have added 2 circulation pumps to avoid dead spots.
- Tank finished cycling and fish have also been added. Black Neon Tetra, Green Fire Tetra, Cherry Barb, Rummynose Tetra, Cardinal Tetra, Glowlight Tetra, Emperor Tetra. Zebra and Tiger Nerite snail.
- There have been no algae so I increased light intensity to 90% and duration is now 10h/day.
- The plants are done melting. HC has started to spawn runners.
- S. Repens do very well while HC grows a lot slower.

Last edited by markl323; 09-23-2017 at 12:35 PM. Reason: fixed url
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post #20 of 38 (permalink) Old 09-23-2017, 07:15 PM
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Very good.

How long did you cycle the tank for and how many fish have you added?

Also was there any reason you didn't do the DSM seen as you're growing carpeted plants?

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post #21 of 38 (permalink) Old 10-11-2017, 05:06 AM
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Any updates?


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post #22 of 38 (permalink) Old 10-13-2017, 10:35 PM Thread Starter
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i re-scaped the right hand side. i think it looks a bit better.

then the tank started having green hair algae. a lot of it. probably due to increased light duration. BIG MISTAKE!

i had to cover it for about a week to get rid of the algae. lost a lot of HC as well. i'll need to adjust light/dosing then get more HC.

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Very good.

How long did you cycle the tank for and how many fish have you added?

Also was there any reason you didn't do the DSM seen as you're growing carpeted plants?

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tank was cycled after two weeks. i had the filter connected to an established tank for a week plus i also used 500ml of SeaChem stability. about 100 fish were added.

i heard submerge plants grow faster so i chose that route. also i wanted to add fish right away
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post #23 of 38 (permalink) Old 10-14-2017, 01:56 AM
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Hey are you happy with your stainless steel pipes with the skimmer? I just bought the 1/2" version from the same company for my 40breeder. Really like the dimensions of a 5' tank. Have been considering one myself. Toss up between 4' 75 or 90 or 5' 100. I guess in the end it will come down to price of each.


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post #24 of 38 (permalink) Old 10-14-2017, 04:29 PM
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Originally Posted by markl323 View Post
..tank was cycled after two weeks. i had the filter connected to an established tank for a week plus i also used 500ml of SeaChem stability. about 100 fish were added.

i heard submerge plants grow faster so i chose that route. also i wanted to add fish right away
You added 100 fish at once to a two week old tank? Why?
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post #25 of 38 (permalink) Old 10-14-2017, 06:32 PM Thread Starter
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Originally Posted by HenrySheehan View Post
Very good.

How long did you cycle the tank for and how many fish have you added?

Also was there any reason you didn't do the DSM seen as you're growing carpeted plants?

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You added 100 fish at once to a two week old tank? Why?
because it was already cycled. this is not my first tank and i know what i'm doing. did you read my entire response? as long as you have enough Seachem stability to handle the fish, it makes 0 difference to add 10 or 100.
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post #26 of 38 (permalink) Old 10-14-2017, 07:05 PM
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because it was already cycled. this is not my first tank and i know what i'm doing. did you read my entire response? as long as you have enough Seachem stability to handle the fish, it makes 0 difference to add 10 or 100.
Oh you added Seachem Stability. My bad, didn't realize. Why stop at 100?
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post #27 of 38 (permalink) Old 10-14-2017, 07:06 PM Thread Starter
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Hey are you happy with your stainless steel pipes with the skimmer? I just bought the 1/2" version from the same company for my 40breeder. Really like the dimensions of a 5' tank. Have been considering one myself. Toss up between 4' 75 or 90 or 5' 100. I guess in the end it will come down to price of each.
the pipes work well for the most part. the skimmer needs adjusting every few days. basically the air underneath the plastic part keeping it afloat dissolves eventually, causing it to drop. this is i guess a downside to this design and not the fault of the manufacturer. although i had not tried another design (i.e ADA) to compare. i use a syringe to add more air to it every few days.

when the water is filled up to 1 inch below the top of the tank, the mouth of outtake pipe is positioned about 3 inches below the water surface. even with the skimmer, this doesn't generate enough surface movement so i position the circulation pumps really high to generate additional water movement at the surface. this takes care of the problem.

the only concern i had before buying this set was the color. but after putting it in the tank i didn't notice an eye sore.

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Oh you added Seachem Stability. My bad, didn't realize. Why stop at 100?
another thing i added every 2 days was Prime, 2-5 the normal dosage for the first week. it binds all leaked ammonia plus nitrite for 48 hours. ammonia and nitrite was always 0.
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post #28 of 38 (permalink) Old 10-15-2017, 11:06 PM
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Can we see a pic of the pipes you got?

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post #29 of 38 (permalink) Old 10-16-2017, 05:13 PM
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Any new pics with the new rocks and fish?
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post #30 of 38 (permalink) Old 02-13-2018, 05:48 AM
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Love to see the updates?


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