Originally posted by NatureLover
bob,
Your theory will fit perfect for freshwater tanks. Since plants release O2 during daytime and CO2 at night.
Just as saltwater plant life does also. I prefer to emphasis that plants consume CO2. The actual release of oxygen has a minimul effect of tanks. The oxygen bubles up with very little being absorbed into the water. With the partial pressure of CO2 reduced the air water gass exchange brings in more oxygen.
I know you are trying to set up oyester shells with plant life to promote CaCo3 with the release of CO2 from plants areated with those.
Not correct. I am experimenting with oyster shells and Crushed coral in my filter box. Preliminary indications are you get a bump up in calcium with no drop in ph. So far it goes back down quickly. I suspect It is from the shipping dust. If that is the case I will try shaking up the filter pads to create more dust.
I don't know if it works but It all depends on how satisfied you are with your tank.
I agree on not using tap water since it has more minarals than a regular lake or waterfall has. Atleast go with RO only water if you can't afford RO/DI.
Always better to adjust with new technology available rather than sitting and thinking why this tank is not like others.
First of all both me and my wife are very satisfied with my tank. There is no question on us affording anything. Our income is multiples of the median houshold income. It appears that I am applying new technology. Otherwise it would not create so much interest.
Finally to you and beth. The nitrate example above shows how waterchanges will never bring nitrates down to 0.0. The importance of that is that the same thing applies to all parameters. If calcium (for instance) is 200ppm and needs to be 440ppm and we are relying on waterchanges to get there. Bascially you will not get there. The only difference is The replacement water has 440 (not 0) the starting point is 200 (not 160) and the ending point is 440 (not 0.0). So unless the system has a way of correcting calcium, mag, alk, ph and all other parameters, water changes alone will not correct the problem. All they will do is slow down the change. All plants to is consume ammonia, nitrates, phoshpates and carbon dioxide. Plus buffer ph, restore outta whace system and help maintain trace elements.
We do an extreme disservice to anyone comming into this hobby by not emphazing the importance of plant life. and we compound that be telling newbies that all matters of mistakes and bad tanks can be corrected with water changes. So the newbies go out, buy a tank 1/3 the size of one they can afford, spend the other 2/3's on unecessary stuff. Then have them changing everything with water changes. I guess we just have all this fun explaining why they have green water, algae blooms, ph drops, and why their fish only last a day or get white spots and die after a week or so.
Meahwhile I will continue emphasizing plant life, tap water, and not doing water changes. that way the newbies will not have to lucky some macro's hickhiked on the LR as in beth's case.