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Several Questions
I've been following this list for a few weeks now and I am very impressed by the level of knowledge found on this list. I'm glad I found you! Now, I have a few questions:
CO2 DIY systems:
When people talk about setting up a cylinder they always say you need a pressure regulator and a needle valve. I know that the needle valve is used to regulate flow, but what is the purpose of the pressure regulator (assuming the needle valve can handle the pressure of CO2 gas)? I know that it would stablize the output of the needle valve, but is it really needed? I would think that in a relatively stable environment this would not be a problem. For example, it might get colder in your home at night, but the drop in flow would be small (and probably a good idea). If the valve failed, I assume the tubing used would pop off. Is my thinking flawed somehow?
CO2 quantity:
What level is safe for fish in fresh water? What is the minimum I should shoot for for healthy plant growth?
Fe quantity:
What level is safe for fish in fresh water? What is the minimum I should shoot for for healthy plant growth?
Additives:
Assume I'm setting up a new 100 gal tank 60"L x 16"W. How much Laterite? I see it listed by the pound. Two pounds?
What about fertilizers/trace elements, etc. Favorite brands anyone?
Test Kits:
Which test kits/tests can anyone recommend from which manufacturer?
That's my list of questions for now. TIA. I've already learned a bunch from this list. Thanks.