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Search: Keyword(s): ; Posts Made By: AndreyT
Forum: General Planted Tank Discussion Today, 06:53 AM
Replies: 5
Views: 97
Posted By AndreyT
There are fish and there are fish. The...

There are fish and there are fish. The "traditional" approach of starting the biological cycle in a new tank (as opposed to "fishless" approach) would be to take a few hardy fishes and let them into...
Forum: General Planted Tank Discussion Today, 06:45 AM
Replies: 2
Views: 30
Posted By AndreyT
Cool story, bro. Now, why is it here?

Cool story, bro. Now, why is it here?
Forum: Substrate 06-01-2015, 09:21 PM
Replies: 1
Views: 77
Posted By AndreyT
Black substrate: multilayer or not?

I have a tank with black sand substrate. When I first set it up a few years ago, I put down a layer of laterite first and then covered it with a thick layer of black sand from PetCo. It looked fine...
Forum: Equipment 05-22-2015, 09:20 PM
Replies: 11
Views: 319
Posted By AndreyT
Not sure what "head" people above are talking...

Not sure what "head" people above are talking about. Cerges reactor is a closed system, just like a canister filter. It has zero static head (i.e. no gravity head at all), regardless of how high you...
Forum: Equipment 05-22-2015, 06:23 PM
Replies: 25
Views: 572
Posted By AndreyT
There's absolutely no issue in "knocking over" a...

There's absolutely no issue in "knocking over" a liquid CO2 cylinder when its main valve is closed. I don't understand why people here are even talking about it.

You should not tilt or knock over...
Forum: Equipment 04-27-2015, 06:45 PM
Replies: 40
Views: 1,215
Posted By AndreyT
You are right. But your case is completely...

You are right. But your case is completely different. Again, the basic axiom here is that the pressure in the output end of the tubing is the same as the "breakthrough" pressure of your diffusion...
Forum: Equipment 04-27-2015, 06:31 PM
Replies: 40
Views: 1,215
Posted By AndreyT
A needle valve can be seen as a primitive form of...

A needle valve can be seen as a primitive form of pressure reduction if the gas after the valve is allowed to flow away freely. But that does not apply to our case.

In our case, we have a...
Forum: Equipment 04-26-2015, 03:52 PM
Replies: 40
Views: 1,215
Posted By AndreyT
It depends on where you are looking at that...

It depends on where you are looking at that bubble.

When we are talking about BPS, we are usually talking about what we see in a device called bubble counter. Bubble counter is installed between...
Forum: Equipment 04-24-2015, 10:37 PM
Replies: 40
Views: 1,215
Posted By AndreyT
Well, the whole purpose of BPS is to serve a...

Well, the whole purpose of BPS is to serve a rough estimate of the amount of gas flowing into your tank. But the thing about gas is that it is easily compressible. Which means that two bubbles that...
Forum: Equipment 04-24-2015, 07:25 PM
Replies: 40
Views: 1,215
Posted By AndreyT
BPS value has no meaning without a pre-determined...

BPS value has no meaning without a pre-determined working pressure value. Once you settle on a specific working pressure (which indeed depends on your diffuser type), you can start talking about BPS.
Forum: Equipment 04-15-2015, 08:58 PM
Replies: 17
Views: 723
Posted By AndreyT
What is that supposed to mean? How can someone...

What is that supposed to mean? How can someone say that "sump can't be done" when there are hundreds of thousands of sumps working out there?

If "can't be done" claim applies to your specific...
Forum: General Planted Tank Discussion 04-09-2015, 02:50 AM
Replies: 49
Views: 2,538
Posted By AndreyT
All heaters consume identical amount of power,...

All heaters consume identical amount of power, regardless of their wattage and other parameters. That's just how heaters fundamentally work. Of course, this assertion is only true if we are...
Forum: Equipment 04-01-2015, 11:26 PM
Replies: 20
Views: 574
Posted By AndreyT
Are the tanks installed on the same horizontal...

Are the tanks installed on the same horizontal level? If not, then running a single canister filter for two tanks is out of question. It goes against the very physical principle on which canister...
Forum: Equipment 04-01-2015, 10:56 PM
Replies: 7
Views: 237
Posted By AndreyT
What kind of shimming are we talking about here?...

What kind of shimming are we talking about here? Under no circumstances you are allowed to shim just a single edge or individual corners of the tank. The tank has to be supported evenly around the...
Forum: Equipment 03-10-2015, 12:17 AM
Replies: 48
Views: 1,812
Posted By AndreyT
Nothing. They are not better. Is this a poorly...

Nothing. They are not better. Is this a poorly veiled viral ad?
Forum: Equipment 03-09-2015, 08:23 PM
Replies: 10
Views: 654
Posted By AndreyT
You mean it works with non-pressurized DIY...

You mean it works with non-pressurized DIY systems?
Forum: Equipment 03-09-2015, 07:34 PM
Replies: 21
Views: 1,128
Posted By AndreyT
Bio-balls are more suitable for filters with...

Bio-balls are more suitable for filters with direct access to open air, i.e wet-dry filters. For sealed systems, like canister filters, porous ceramic rings is a better idea.
Forum: Equipment 02-20-2015, 12:51 AM
Replies: 11
Views: 368
Posted By AndreyT
Firstly, are you uploading it as a HD video? When...

Firstly, are you uploading it as a HD video? When does the quality loss occur: after you "save it into a format that can comply with youtube", or after you "upload it into youtube"?

Secondly, as...
Forum: Equipment 02-11-2015, 02:25 AM
Replies: 19
Views: 649
Posted By AndreyT
A piece of [off-topic] advice: In USA you...

A piece of [off-topic] advice:

In USA you are only allowed (or, more precisely, required) to say things like that about Russians. If you say something like that about Americans, you can easily end...
Forum: Equipment 02-09-2015, 11:13 PM
Replies: 7
Views: 319
Posted By AndreyT
Firstly, it is not clear what regulator you have....

Firstly, it is not clear what regulator you have. AquariumPlants sells several different ones. Secondly, if your regulator is adjustable, then nothing bad will happen to it if you set it for higher...
Forum: Equipment 02-09-2015, 11:10 PM
Replies: 12
Views: 422
Posted By AndreyT
Your picture is reported by Flickr as "Adult...

Your picture is reported by Flickr as "Adult Content". Not visible without signing in.
Forum: Equipment 02-05-2015, 10:01 PM
Replies: 2
Views: 215
Posted By AndreyT
That does not seem to make any sense. Do you have...

That does not seem to make any sense. Do you have a CO2 regulator between your CO2 tank and your needle valve? Judging by the rest of your post you do, but in that case it is impossible to affect the...
Forum: Equipment 01-29-2015, 09:06 PM
Replies: 28
Views: 1,279
Posted By AndreyT
The whole point of feeding a wet/dry filter...

The whole point of feeding a wet/dry filter through an overflow is to prevent the system from flooding in case the return pump stops (pump failure, power outage, etc.) The pump adds water to the...
Forum: Equipment 01-24-2015, 08:17 PM
Replies: 21
Views: 802
Posted By AndreyT
No, that does not mean that there's "negative"...

No, that does not mean that there's "negative" pressure inside the canister. The only thing it means is that the pump lowers the pressure after the media. The pressure after the media is lower than...
Forum: Equipment 01-23-2015, 11:40 PM
Replies: 21
Views: 802
Posted By AndreyT
Canister filter installed under the tank works...

Canister filter installed under the tank works under a fairly significant amount of positive water pressure inside. How can it possibly suck in air? Through the intake tube - maybe, but throuh the...
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