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Search: Keyword(s): ; Posts Made By: AndreyT
Forum: Equipment 01-29-2015, 10:06 PM
Replies: 16
Views: 369
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, 09:17 PM
Replies: 21
Views: 546
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 01-24-2015, 12:40 AM
Replies: 21
Views: 546
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...
Forum: Equipment 01-22-2015, 02:51 AM
Replies: 5
Views: 255
Posted By AndreyT
So, what's the 4th function? Diffuser, check...

So, what's the 4th function? Diffuser, check valve, bubble counter and ... ?
Forum: Equipment 01-16-2015, 07:27 PM
Replies: 16
Views: 437
Posted By AndreyT
They can if they get "stuck". These heaters...

They can if they get "stuck".

These heaters control the power supply to the heating element through a mechanical relay. (Which is what makes that "click" sound when they turn the heater on or...
Forum: Equipment 01-16-2015, 07:21 PM
Replies: 31
Views: 1,145
Posted By AndreyT
Not really. They are not allowed to state that...

Not really. They are not allowed to state that "it must be on their stand". So, even if they wrote something like that in the text, you can safely ignore it anyway. If your stand is OK structurally,...
Forum: Equipment 01-08-2015, 12:39 AM
Replies: 8
Views: 474
Posted By AndreyT
How is this implemented? Is there some sort of...

How is this implemented? Is there some sort of chamber in the filter that works as a "diving bell" and holds some amount of air? Does the manual explain the purpose of this air pocket?



Can you...
Forum: Equipment 01-08-2015, 12:34 AM
Replies: 12
Views: 310
Posted By AndreyT
Aqueon makes non-adjustable heaters, like this...

Aqueon makes non-adjustable heaters, like this one

http://www.petco.com/product/126602/Aqueon-Preset-Aquarium-Heater.aspx

but they are typically clearly labeled as such ("Preset" or something...
Forum: Equipment 01-06-2015, 08:13 PM
Replies: 14
Views: 284
Posted By AndreyT
"Bulkhead" in a true definition is not "a...

"Bulkhead" in a true definition is not "a pass-through on a vessel". Quite the opposite, bulkhead is a watertight wall on a vessel. Nothing "pass-through" about it. For example, a submarine is...
Forum: Equipment 01-05-2015, 10:53 PM
Replies: 14
Views: 284
Posted By AndreyT
After finishing reading this thread, in astounded...

After finishing reading this thread, in astounded amazement I have to admit the following: today I learned that some people apparently use the term "bulkhead" to refer to bulkhead fittings.

Could...
Forum: Equipment 12-24-2014, 01:11 AM
Replies: 8
Views: 336
Posted By AndreyT
I have two sponges in my Aquaclear, which I've...

I have two sponges in my Aquaclear, which I've been using for a few years already. They are stacked in the filter one on top of the other. One sponge came with the filter originally. Another one I...
Forum: Equipment 12-20-2014, 10:45 PM
Replies: 5
Views: 319
Posted By AndreyT
That's actually a physically illiterate thing to...

That's actually a physically illiterate thing to say. "The weight of the water" does not change regardless of where and how you run the hose.

The pressure the canister sees at its end will always...
Forum: Equipment 11-15-2014, 01:36 AM
Replies: 14
Views: 742
Posted By AndreyT
This last statement is so nonsensical, that it...

This last statement is so nonsensical, that it can be fairly safely concluded that the person who made it was either completely ignorant or highly influenced by some controlled substances.
Forum: Equipment 10-16-2014, 07:24 PM
Replies: 16
Views: 857
Posted By AndreyT
One more time: in both cases in order for this...

One more time: in both cases in order for this aligning effect to work, the dead fish has to be braced against the flow. Just like the dart has to fixed inside the wind tunnel. In any case the body...
Forum: Equipment 10-16-2014, 12:47 AM
Replies: 16
Views: 857
Posted By AndreyT
When a body is passive, i.e. it simply floats in...

When a body is passive, i.e. it simply floats in the flow and does not attempt to move with relation to the surrounding flow, then the "hydrodynamic drag against the flow" simply does not exist. It...
Forum: Equipment 09-29-2014, 07:18 PM
Replies: 11
Views: 624
Posted By AndreyT
Er... You need to clarify your question. ...

Er... You need to clarify your question.

Fish breathe oxygen, so, obviously, the answer is "yes": having oxygen in the tank is important. Fish will die without oxygen. It is important at all...
Forum: Equipment 09-12-2014, 07:05 PM
Replies: 9
Views: 327
Posted By AndreyT
They woudn't. They will just provide more...

They woudn't. They will just provide more thorough filtration for the same flow.



The benefit is obvious: only one intake and only one return tube. Two filters in series will have about the...
Forum: Equipment 09-12-2014, 07:33 AM
Replies: 9
Views: 327
Posted By AndreyT
This has been asked several times before. ...

This has been asked several times before.

Connecting two identical filters in series is viable. It will improve filtration quality (less than 2 times though), while keeping the flow virtually...
Forum: Equipment 08-09-2014, 12:34 AM
Replies: 26
Views: 747
Posted By AndreyT
Judging bio-media by surface area alone makes...

Judging bio-media by surface area alone makes very little sense. It is not enough to have large surface area, it is also important to make sure that water flow can access all portions of that surface...
Forum: Equipment 08-06-2014, 10:05 PM
Replies: 24
Views: 728
Posted By AndreyT
AquaClear is very silent once you let it to...

AquaClear is very silent once you let it to break-in (apparently let it form some sort of lubricating slime of moving parts). It will be noisy for a first few days after the initial installation. It...
Forum: Equipment 08-06-2014, 06:26 PM
Replies: 16
Views: 552
Posted By AndreyT
It is not about distance. It is about height...

It is not about distance. It is about height difference. I.e. only the vertical portion of the distance matters, while horizontal portion - not much. With a sump the matter of height difference...
Forum: Equipment 08-05-2014, 10:45 PM
Replies: 16
Views: 552
Posted By AndreyT
There are not even remotely the same thing....

There are not even remotely the same thing. Canister filter and wet-dry filter (aka sump) work on completely different physical principles and have completely different properties.

Canister filter...
Forum: Equipment 08-01-2014, 09:53 PM
Replies: 13
Views: 670
Posted By AndreyT
So, how long is your "since I've had it"? 15...

So, how long is your "since I've had it"? 15 minutes? A day?
Forum: Equipment 06-16-2014, 09:46 PM
Replies: 42
Views: 1,249
Posted By AndreyT
I also use Airgas (in my case - in San Jose, CA)....

I also use Airgas (in my case - in San Jose, CA). I swap 5lb cylinders. For some unexplainable reason their prices swing wildly in either direction from swap to swap. I remember paying $35 per swap,...
Forum: General Planted Tank Discussion 06-13-2014, 10:38 PM
Replies: 11
Views: 524
Posted By AndreyT
The first option is, of course, cyanoacrilate...

The first option is, of course, cyanoacrilate glue (aka "superglue"). It is so perfect in such applications that there's no need to search for anything else.
Showing results 1 to 25 of 250

 
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