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Discussion Starter · #1 ·
Hi again.

I am looking for some advise/feedback on my current tank. I have had tropical fish for around 2 years. First tank was 70L, second was 180L and my newest tank which I got about 6 weeks ago is 400L with 100L sump.

I decided with this tank that I want to have real plants. I put some black sand substrate in with some plant soil and small rock (cant remember the names but they are both for planted tanks).

I have some white slate, a few plants and some mopani wood in there just now. The sump flow in chamber has some coarse filter media, the next baffle has medium filter media, fine filter media, some fine floss and then ceramics. The center chamber has a kind of bio ball bag. The return chamber has my 2 heaters and return pump. The return output is connected to a spray bar.

I knew I needed to inject co2 into the tank for the plants so I looked up some forums for a DIY setup as one from the shop was around £3-400. I got a fire extinguisher from work the other and ordered a regulator with solenoid, bubble counter with non-return valve and an atom diffuser.

I am wondering if I can inject the co2 into the sump where my return pump is as the atom diffuser is causing a lot of micro bubbles which doesn't look the best in the main tank. I don't want to have to drill into my return line in case I get any leaks. I have also heard of reators but not really sure what the best plan is. Any suggestions?

I would also like any input anyone may have to my current tank setup and the sump setup. I was not sure what to put where in the sump when I got it so I kinda just set it up the way it is.

Thanks. Looking forward to any and all replies/commets.
 

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I go low tech only so cant answer your question but the tank looks nice, I like it.
 

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I'm currently building a DIY co2 setup also, I purchaced a ISTA co2 Turbo mixer to prevent that soda bubble effect, isnt setup yet but from what i looked up looks promising. Was planning on running it of my canister filter, but no reason it couldnt be run off a return pump. SERA makes a bigger version

[Ebay Link Removed] Turbo CO2 Reactor DIFFUSER[censored]12 16mm External FOR Aquarium Atomizer Fish Tank | eBay[/url]

https://www.youtube.com/watch?v=5z5e2dDR5DQ
 

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Discussion Starter · #4 ·
I'm currently building a DIY co2 setup also, I purchaced a ISTA co2 Turbo mixer to prevent that soda bubble effect, isnt setup yet but from what i looked up looks promising. Was planning on running it of my canister filter, but no reason it couldnt be run off a return pump. SERA makes a bigger version

[Ebay Link Removed] Turbo CO2 Reactor DIFFUSER[censored]12 16mm External FOR Aquarium Atomizer Fish Tank | eBay[/url]

https://www.youtube.com/watch?v=5z5e2dDR5DQ
Nice video. I don't want anything stuck to the tank on any side wether it's inside or out if I can see it. Only the spray bar is attached to the tank which I may also change. I would like some ideas on how to inject the co2 into the sump and if it's a good idea.
 

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Yeh I was just looking at them all. I think I might go with the first one you suggested. It looks quite good and I could put it on the side of my sump. I'd just take the return hose off the pump, put it onto the reactor and connect the pump to the input on the reactor. The add the co2 line. Im not quite sure if they are noisy though. I will look for some youtube videos about them and see how noisy they are.

I ordered the Ista Turbo CO2 Reactor DIFFUSER ;)
 

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Does anyone have any suggestions on what I could place into the sump to help plant/fish growth and water clarity?
Well best way to help plant growth is by correctly balancing light, CO2 and fertilizers.

Water clarity you can make sure your sump has a good amount of mechanical filtration, from coarse to fine. The finer the final stage the clearer the water will be. Poly-fil is typically what people use to polish the water.

If you want to go ultra clear, you can use purigen which will scrub your water so clean that you will no longer be sure you actually have water in the tank. It is on the expensive side, but can be recharged, and should be placed after all your normal mechanical filtration.
 

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Discussion Starter · #9 ·
Well best way to help plant growth is by correctly balancing light, CO2 and fertilizers.

Water clarity you can make sure your sump has a good amount of mechanical filtration, from coarse to fine. The finer the final stage the clearer the water will be. Poly-fil is typically what people use to polish the water.

If you want to go ultra clear, you can use purigen which will scrub your water so clean that you will no longer be sure you actually have water in the tank. It is on the expensive side, but can be recharged, and should be placed after all your normal mechanical filtration.
Thanks for your comments. How much purigen would be recommended for a 400L DT?
 

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Discussion Starter · #11 ·
Would it be possible to put the purigen inside a Ista Turbo CO2 Reactor DIFFUSER? See image. I'm assuming not and I could always put it after the floss in the sump I think.
 

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john its funny you ask that, i actually brought 2 of those exact diffusers with the intent of using one for purigen. No idea if it will work but i've given it a go, still not finished. i'll have to upload photos when i'm done, but essentially i've cut up some sponge filter into 2 "rings", and also an old seachem purigen bag i had laying about that the join had failed on cut into the same ring shapes oversized, i glued the bag material to the middle tube and plan on running the purigen in between the 2. Also was going to run it backwards, removed one of the impellers and blocked the airtube inlet with airline superglued in the end to cap it...
 

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Discussion Starter · #13 ·
john its funny you ask that, i actually brought 2 of those exact diffusers with the intent of using one for purigen. No idea if it will work but i've given it a go, still not finished. i'll have to upload photos when i'm done, but essentially i've cut up some sponge filter into 2 "rings", and also an old seachem purigen bag i had laying about that the join had failed on cut into the same ring shapes oversized, i glued the bag material to the middle tube and plan on running the purigen in between the 2. Also was going to run it backwards, removed one of the impellers and blocked the airtube inlet with airline superglued in the end to cap it...
I ordered one last week for CO2 injection. I'm just wondering if I could add the purigen into the same canister instead of having 2 canisters.

If it is not possible or advisable to do that, I will just add the bag of purigen into one of the baffles in my sump as the water flow/coverage will be good enough I hope.
 
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