** My arowana fish tank adds the first level of physical filtration in the overflow area, but there is a problem. The overflow port is attached to the glass and causes water to flow through the gap between the box edge and the filter cotton. As a result, the first level of white cotton filterIneffective.**** I solved this problem with a section of plastic track (no glue, removable), the practice is simple and practical, and the effect is very good.At the same time, the gap between the outlet of the water baffle plate and the water level plate has been reduced by more than 1mm. With the same flow pump, the water level difference in the cylinder has increased by about 5mm, and the ability to suck stool has also been enhanced.**** For fishermen who overflow with four corners, such as the gap between the water baffle and the water level plate when sticking to the tank, you may wish to use this method to determine the track specifications according to the thickness of the water level plate glass, generally 8, 10mm, according to the matching selectionThats it.If you want to reduce the overflow gap a bit more, if the gap is changed from 15mm to 12mm, and the glass thickness is 8mm, choose a 10mm track, and use plastic sheets and other gaskets between the track and the glass.**** Look at the picture and speak clearly:****The supplementary explanation is as follows:****The ability of the four corner overflow to attract fish stool can be expressed by this formula: the ratio of the amount of water in the tank to the surface area of the overflow outlet.Increasing the numerator or decreasing the denominator will increase the ability to defecate.The situation in the post is to reduce the denominator so that the water level difference in the cylinder increases when the pump flow rate is unchanged.The reason is very simple, the tap water pressure is certain, you squeeze the water outlet hose, the water soars farther, the flow rate is the same, the outlet is smaller, and the flow rate is faster.**

**This is not my first.Although the specific value of this difference is not currently available in a table (which can be established, but it seems to be of little significance), there is still some guiding significance.**

For example: my current water level difference in the tank is 15mm, the water volume is: 1.6mX0.7mX0.015m = 0.0168 cubic meters; my cylinder overflow outlet is 30cm long, the gap is 10mm, the surface area of the overflow outlet: 0.3X0.01 = 0.003 square meters.The ratio is: 0.0168/0.003 = 5.6

I plan to make a two-tiered cylinder this year. The size is 150cm (length) X60cm (width) X60cm (height). The width and height of the lower cylinder are the same as the upper cylinder. The length is only about 140.+ On the way of filtering.5.6 This value, I feel that the ability to suck stools is satisfactory.I will use it to guide the size of my overflow port. After calculation, the water level difference is 15mm, which is also 5.6 The fecal capacity is calculated, and the overflow surface area is 0.0024 square meters, so the overflow can only be less than 24cmX10mm, or 30cmX8mm.Of course, I already know how much traffic.

There are so many wordy, you can refer to the fish friends.A familys words, nothing more!

For example: my current water level difference in the tank is 15mm, the water volume is: 1.6mX0.7mX0.015m = 0.0168 cubic meters; my cylinder overflow outlet is 30cm long, the gap is 10mm, the surface area of the overflow outlet: 0.3X0.01 = 0.003 square meters.The ratio is: 0.0168/0.003 = 5.6

I plan to make a two-tiered cylinder this year. The size is 150cm (length) X60cm (width) X60cm (height). The width and height of the lower cylinder are the same as the upper cylinder. The length is only about 140.+ On the way of filtering.5.6 This value, I feel that the ability to suck stools is satisfactory.I will use it to guide the size of my overflow port. After calculation, the water level difference is 15mm, which is also 5.6 The fecal capacity is calculated, and the overflow surface area is 0.0024 square meters, so the overflow can only be less than 24cmX10mm, or 30cmX8mm.Of course, I already know how much traffic.

There are so many wordy, you can refer to the fish friends.A familys words, nothing more!

= (Comments on alliance SianLon Arowana Aquatic friends) =

Little Parrot 0000
Say:
Good, top

Fish Friends Hot
Say:
Good experience

Yuyou Robber_
Say:
1

Yuyou ★ Wolf is here ★
Say:
1
The suction power is not enough, can the fish still suck up?

Fish Friends QQ Blue Fox
Say:
1
Learn!!!!!!!!!!!!!!!

Yuyou u135AEKD6302
Say:
2

The ability of the four corner overflow to attract fish stool can be expressed by this formula: the ratio of the amount of water in the tank to the surface area of the overflow outlet.

Increasing the numerator or decreasing the denominator will increase the ability to defecate.The situation in the post is to reduce the denominator so that the water level difference in the cylinder increases when the pump flow rate is unchanged.The reason is very simple, the tap water pressure is certain, you squeeze the water outlet hose, the water soars farther, the flow rate is the same, the outlet is smaller, and the flow rate is faster.

★ Wolf is here ★

The suction power is not enough, can the fish still suck up?

Yuyou18613515088
Say:
Good way, thanks for sharing

Tayuobaba
Say:
Thank you for sharing

Yuyou Yuyang Lone Star
Say:
A good way is worth learning.Which one is better, the flying anchovy and the warship&Does Feifeng keep with any fish?(Flying anchovy is the cheapest@Can flying anchovies replace scavengers)Can Thai carp replace Feifeng$Feifeng is good!What is the difference between flying anchovies and double line fish$Which is better, Thai crucian carp and flying phoenix%