How Does an External CO2 Reactor Work? (e.g., Dupla, AquaMedic)

I add the main fish 1-2 months, I'd never wait 12 months.

40% of stuff that's over price is no deal.
The cables you certainly did not need.

I have had full blown Dupla/Tunze systems for clients.
We sold off everything years ago. Got 300$ for the cables:)
The clients have had planted tanks now for 10 years, we replaced the sand/cables with Flourite and all's been better over the long term.

I know they(cables) don't do anything and are waste of $. They don't hurt, but they don't help either.

I have 3 ex clients that attest to that.

Regards,
Tom Barr
 
Although I have never seen a need for cables either, there are people that swear by them, go to George Booths WEB site if you want to read the other side of the story. You have already spent the money for the product, there is no need at this point to have second thoughts. There are many ways to cook an egg so to speak.

Eco complete is the hottest thing going right now, and has gotten great feed back in all the forums from users. Whether you buy into the need or effectiveness of the nitrifying bacteria or not, the fact is it provides all the needed trace minerals, not just iron as Flourite does, and the live bacteria and organic material put the minerals into solution immediately, which a plain clay gravel does not. The live bacteria will also produce oxygen and C02 in small amounts in the substrate

Clay or laterite provides oxidized iron, which plants can not use until acids convert it to water soluble iron, (Fe2) So while you can certainly grow plants very well with other types of substrates, Eco complete certainly has it's benefits.
 
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