silver Arowana?

  • We are currently upgrading MFK. thanks! -neo

That's what I always knew, too. If nitrates evaporated into the air, why the hell have I been doing these water changes? Bacteria breaks nitrite into nitrate, from what I understand, and if carbon absorbed nitrate, I doubt most people on here would answer "no" on polls whether or not they use carbon in there filter.
 
unless he has a planted tank, but even then, wouldn't it be CO2 rich water that would help the plants absorb the nitrogen? I mean, there is CO2 in the air, but there is more Oxygen and nitrogen, from what i learned in 10th grade earth science. I know nothing about planted tanks, so I could be wrong.... Would it make a difference if the tank is planted? Is the OPs tank planted?

Anyway, though, that's awesome that your aro likes the bubbles. Put a whole bubble fish-wash in the center of your 220. Put enough rocks around it, I doubt your catfish will mind. He might like them, too.
 
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i dont have a pic of it since i moved it to the living room but this is the set up the only thing different is the smaller piece of drift wood is gone and anther aro is in there. and yes i know it is a little over crowded but most of the fish will be moved this weekend.
 
o and as for the cycling it must work different in a fresh water tank then salt water because i have had salt tanks with out doing water changes in them for 2 years and had no problems including growing a certen type of algae that will not grow if anything is off key lol and this crap was out growing the tank at a rate of 2+ pounds a week(lol on a side note i should have put it up for sale it was going for 15 to 20$ a small clump) the reason i think a fresh water tank needs so many water changes is because of the fish we have in them thay create wast faster then the tanks bio filters can handle
 
I don't have any personal experience with saltwater tanks, but my understanding (through knowledge gained from here) is that liverock and protein skimmers are what keep nitrates down in saltwater tanks. There is little anaerobic bacteria in freshwater tanks, and I'm pretty sure the anaerobic bacteria in live rock are what keep nitrates low, and protein skimmers remove the waste from that metabolism. I could be wrong about that, but in freshwater tanks you have to keep up with water changes more dilligently.

and, in the long run, a peacock bass and two aros are gonna need more than 220 gallons.
 
I don't have any personal experience with saltwater tanks, but my understanding (through knowledge gained from here) is that liverock and protein skimmers are what keep nitrates down in saltwater tanks. There is little anaerobic bacteria in freshwater tanks, and I'm pretty sure the anaerobic bacteria in live rock are what keep nitrates low, and protein skimmers remove the waste from that metabolism. I could be wrong about that, but in freshwater tanks you have to keep up with water changes more dilligently.

and, in the long run, a peacock bass and two aros are gonna need more than 220 gallons.

Correct.


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Im setting up a 2000g pond this summer the 220 is a temp

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I was going to say I felt you where coming from a saltwater approach from some of your post hahaaa good luck man.

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