Nexus Lid - Bungee Cord Fastening Kit

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Customer Questions

Can Nexus+ be gravity or pump fed?

Yes, it can easily be adapted to either filtration method by simply swapping the supplied rubber boots.

Do I need an airpump for NexusPlus?

Yes, it powers the moving bed biological filter and is also vital to the cleaning process. You need an Evolution Aqua Air Pump 75 for a Nexus 220 and an Air Pump 95 for a Nexus 320. If you increase the amount of media in the outer chamber you may well...

How does the Nexus Automatic Control Box work?

Understanding the Nexus Automatic Control Box Video This video will show you how the Nexus Automatic Control Box works. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus ...

How does the Nexus Automatic Air Control Valve Box work?

This video will show you how the Nexus Automatic Air Control Valve Box works. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus Automatic Control Box.

How does the Nexus Automatic Inlet Plate Relay work?

This video will show you how the Nexus Automatic Inlet Plate Relays work. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus Automatic Control Box.

How does the Nexus Automatic Waste Valve Relay work?

This video will show you how the Nexus Automatic Waste Valve Relay works. This will help you to troubleshoot any issues you may have encountered along side our other troubleshooting videos for the Nexus Automatic Control Box.

My Nexus is not draining to waste when valve is opened.

Remove the outside union on the waste ball valve, open the valve, if no water pours out the blockage is under the Nexus, carefully push a suitable stick (such as a cane) and release the blockage, you can also remove the Eazy and access the pipe from ...

The inlet valve does not turn on my Nexus during a cleaning cycle.

Check if the inlet valve is being obstructed. Check if the yellow light is illuminated. If light is not illuminated after 3 minutes, initiate a manual clean to check operation. Check the wiring is correctly installed. Seek advice from a suitably ...

How do I identify the spare part I need for my Nexus?

You can identify the spare part you need in the Nexus manual, the spare parts list is located on page 29. To view the manual, click here. Alternatively, you can identify the spare part you need from the image below.

K1 Micro is floating but K+Media is not in my Nexus, why is this?

The K+Media in normal conditions becomes semi-buoyant within 48 hours. However, the K1 Micro (only in the Eazy) takes longer to absorb water. This can take up to one week.

The K1 Micro in the Nexus Eazy doesn’t move well during the cleaning cycle

The reasons for this could be one of the following: The air pump is not powerful enough (see Air Pump Recommendation on page 4) There isn’t enough water in the Nexus – check that you used the cleaning pipe to maintain the level on a pump fed system...

I have an Ammonia and / or Nitrite reading.

A typical filter can take approximately 8 weeks to mature. During this time Ammonia and Nitrite levels will rise and fall. This process can be accelerated by using PUREPOND. If you still experience Ammonia and Nitrite readings after this period of time...

I am using a Nexus, my pond has been running for longer than 2 months and my water is cloudy, why?

It is important that the Eazy is flushed a minimum of 2 times during cleaning. This ensures that all the debris collected is flushed out to waste. If the unit is only cleaned once some debris can be returned to the pond, clouding the water. Flush the...

My Nexus is blocked with media/debris between the eazy and the main chamber

To clear the block you will need to drain down the outer chamber and clear the kiss points with a small flat screwdriver.You will then need to refill the filter, the media should float up so it can remove by hand.

Can I retrofit a Nexus

It is possible to retrofit a Nexus. However this cannot be done for an Eazypod.

My media is not circulating as good as what it was in the outer chamber of my Nexus.

You will need to check to see if your Airpump is working as it should be. The airline holes may have become blocked with limescale. To rectify this you will need to drain down the outer section and check the airline for any blockages.

How often do I need to change the media in my Nexus?

You should never need to change the media in your filter. You can add more to the outer chamber of your filter if required. Please see question 4 for more information before adding more.

How much water is drained to waste from my Nexus during a cleaning cycle?

In a Nexus 220+ 140 litres of water is drained to waste. In a Nexus 320+ just under 200 litres of water is drained to waste.

What is Nexus Automatic?

The Automatic is a separate system which can be fitted to Nexus filters, to enable automatic cleaning. By combining timers and automatic valves, Nexus can be converted and set to clean itself, as little or as often as required. It can be set to clean...

How can I extend the draining time of my Nexus Automatic?

You first need to remove the sticker of the far right side box and change the last dial with a small screwdriver from 50% to 40%, this will extend the cleaning time by one minute.

There is no power to the Nexus control box.

Check the wiring is correctly installed. Seek advice from a suitably qualified electrician if in doubt. Check the mains connection to the control box. Seek advice from a suitably qualified electrician if in doubt. Check the fuses inside the control...

How can I locate the fuse in the Nexus control box?

These are located alongside the timer blocks within their own hinged compartments. The fuses are all standard glass fuses; 10 Amp, 5 Amp, 2 Amp, 2 Amp from left to right.Please see the image below, this is where you can locate the fuses.

How do I set a Nexus Automatic to clean at a set time each day?

As its an analogue timer the cleaning frequency will be purely based on time so for example once every 24h, you can dictate the time by pressing manual clean at say 6pm and then it will automatically clean at 6pm the following day. On a twice a day clean...

Nexus Automatic does not close waste valve

To locate the issue you will need to:Check the relay furthest on the right in the auto box -Check the fuse - Does it light up during a cleaning cycle?If the relay is working as it should, you will need to check the motor. If it’s under warranty you will...

How often will the filter need cleaning?

Typically in summer the filter will require cleaning once or twice a week, however every pond if different and cleaning requirement will vary depending on stocking density, exposure to sun and other variables.

Why do I need to clean my filter more often?

Too much algae. Excessive water flow and pressure. Check pump size. Overloaded with fish. Excessive feeding. Filter blocked through calcium.

I have a nexus 320 pump fed automatic. I want to change to gravity fed. What do I need to purchase to do this.

Nexus Filters are supplied ready for pump fed installations. To convert it to gravity fed, please refer to the manual. https://evolutionaqua.com/pub/media/bss/productattachment/Nexus320_Manual-A5_Size-March-2021.pdfYou would also need to purchase spares...

Who are Kessil?

Kessil is a brand name of Di-Con – an American company which specialises in design and manufacture of LED lights for everything from photography and filming, to aquariums and horticulture.

Which Kessil light do I need for my reef tank?

As a general rule, 1 x A160WE Tuna Blue lights 45x45x45cm and 1 x A360WE Tuna Blue lights 60x60x60cm. 1 x A360X lights up to 90x60x60cm or 75x75x75cm, and an A360 Narrow lights 45x45x75cm. An AP700 lights up to 120x60x60cm, and the A80 Tuna Blue lights...

Can I control Kessil Lights straight out of the box, or do I need an extra controller?

All Kessil lights can be controlled on the top of the lamp with a knob which controls brightness, and another which controls spectrum. The AP700 has touch capacitive buttons. In order to have the lights come on at timed intervals they will require a ...

Are Kessil Lights passive or active cooled?

The small A80 is passively cooled with a built-in heat sink, but all other lamps are actively cooled with built in fans. This enables a very high output of light from a small area.

What is the warranty on Kessil Lights?

All Kessil products are guaranteed for one year from the date of purchase. Kessil lamps or controllers are not waterproof, so if dropped in water or splashed, causing damage, units are inspected and claims not entertained.

How do I mount Kessil Lights on my tank?

Kessil is famous in the aquatics industry for its gooseneck mounts. These are bendy, flexible mounting arms which can clamp to a tank rim in a number of ways, and then the light pointed to where it’s needed. For those who crave a neater solution, the...

Are there any upgrades or add-ons for Kessil Lights?

The A360X has a Narrow Reflector (launched March 2019,) which will focus the beam, and a Wi-Fi dongle and diffusor lens are also expected for the future. All will be available separately.

Is The Complete Liquid Plant Food safe for invertebrates?

Yes, it is safe to use with all invertebrates including snails and freshwater shrimp

How often should I use Complete Liquid Plant Food?

Directions are to dose daily, however weekly dosing calculations can be made, and still have great results with plants.

Will I benefit from using other fertilizers?

The Aquascaper plant food is classed as Complete, so includes macro and micro nutrients, and NPK. Dosage can be further increased for demanding situations. If individual dosing of elements is required instead, Evolution Aqua also distribute Aquaforest...

How do I adjust the Double Union Ball Valve?

If you're finding it difficult to turn the valve during maintenance, you can use the video below to learn how to adjust it.

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Nexus Lid - Bungee Cord Fastening Kit

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FAQ (38)