plantbrain said:I've looked at ADA's flow and store front displays etc for some time and modified things to enhance things.
I want good flow, but not plants being blasted around either, same for fish for the most part.
The goal here is to have good low pressure, but high volume flow like we see in natural systems.
Reef folks have long used such powerheads (and they are much cheaper than in the past) these days.
I average about 14 Turnovers per hour for most of the better run tanks I've done.
Generally, the flow from the filter is amplified using the low pressure propeller type powerhead and it blast the CO2 and the filtered water all over, as well as providing good surface movement without breaking the surface.
I new and novel method to add O2 at night without an air stone:
Use a reducing tee off the return pipe and place a check valve to prevent back flow into a small air pump, place the air pump on the reverse cycle of the CO2(or a few minutes in between etc).
This will add lots of air and O2 during the night, keep things clean without adding anything inside the aquarium.
Cost is pretty cheap.
Will allow more fish and reduce the CO2 when you do not need it for plant growth.
teg1203 said:Would it be possible to utilise the co2 diffuser by swapping from pressurised co2 to air (from a small pump) via a simple tee and check valve and operate "crossover" fashion so when one is off the other is on and vice versa.
This is one of the basic properties of the condition known as "resonance' and this is why, when an army marches across a bridge, they are instructed to avoid marching in unison because hundreds of feet striking the bridge at the same time can actually cause the bridge to collapse due to the simultaneous and synchronous energy input to the structure.
Yes, but how is this helpful, and what does this actually mean in practical terms? Clearly, common sense is to perceive flow in the tank in the same way as that in a washing machine which results is collision of streams, wasted energy, stagnation areas and so forth. In this case, it may be more fruitful if common sense is abandoned in favour of the less common analogy associated with harmonics.jcastell said:...If you want to create good water flow in the aquarium just use common sense.
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