5mm Low Iron glass for aquarium

5mm Low Iron glass for aquarium

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£90.00 - £180.00 / per m2 ex VAT

DIY Aquarium – Sheet glass only

Panels over 2.5m2 must be Priced as over size panels and may incur extra costs. please contact us.
Laminated Glass - Minimum Charge 0.5m2 (per panel)
Toughened / Float Glass - Minimum Charge 0.3m2(per panel)
Glass Thickness: 5mm
Availability: Out of stock SKU: 5mm-Low Iron Annealed Tags: , , , ,


Why choose 5mm Low Iron glass for aquarium?

Buy Glass 5mm Low iron annealed glass for Aquariums is made with silica that has a much lower iron content that nearly eradicates the greenish-blue tint you see in regular float glass applications. The sand used for low iron Aquarium glass has just 0.01% ferric oxide, and regular annealed glass will have ten times more.

You may not notice the green tint in small aquariums with thin glass, but with thicker glass, it makes a significant difference, particularly through crisp, white reef light spectrum.

Which Brand do you use?

Pilkington Optiwhite™

The reason for this is the sheer variety of benefits which Pilkington Optiwhite™ can offer, making it an excellent choice for a wide range of applications. Pilkington Optiwhite™ is a low-iron extra clear float glass with very high light transmission. It is practically colourless, and the green cast inherent to other glasses is not present. It is therefore ideal for use where glass edges are visible or where a neutral colour is desired. As its light transmission is higher than clear float glass, it is perfect for applications where transparency and purity of colour are desired.

Why use 5mm Low Iron Annealed Glass and not toughened?

The reason that tank builders and enthusiasts generally use 5mm annealed low iron glass for aquarium is that if that if a rock falls against the glass hard enough or you accidentally bang the tank, float low iron glass will generally crack. This crack will leak water buy should buy you enough time to save your beloved water creatures. If tempered or toughened glass breaks it smashes into small chunks, instantly, sending all the glass and the water, fish, shrimp etc everywhere.

Additional information

Glass Type

Glass Thickness

Safety Glass

Min Handling

Max Handling

Unit Pricing Base Measure

Unit Pricing Measure

Edge Polishing

BuyGlass.Co pride ourselves on creating a beautiful end product. With edge polishing there are a few things to consider before you purchase & when evaluating the glass you receive.

Depending on the process used, the edge finish can vary slightly between panels. All BuyGlass.Co edge polishing is finished to an exceptional standard and fully QC'd before release.

If you require a uniform finish across all pieces then please contact us after the order is placed.

Otherwise we will process the polishing using whichever process we choose, and although generally this would mean all glass uses the same polishing technique there are certain times when we may use various methods.

Glass Corners

Corners are supplied, as standard, with dubbed corner. If you require unfinished or radius corner please let us know.

Laminated Glass

We use multiple methods for creating laminated glass. CIP, SGP, PVB & EVA are totally different processes which produce very similar results. CIP however, due to the injection process, has a faint area at the perimeter which can be seen upon closer inspection.


If you would prefer any particular method then you must let us know prior to production or else, at our discretion, we will use any method.



BuyGlass.Co takes it's responsibility to the environment very seriously and that why all of our glass is manufactured here, IN THE UK.

Pilkington Glass

Saint-Gobain Glass


All of BuyGlass.Co glass has passed an impact test (currently BS 6206: 1981) and either must not break or must break safely.

Laminated Glass - BS EN 14449
Toughened GlassBS EN 12150
Wired Safety Glass
All Security Glass


Nobody likes paying for shipping. We don't like charging for delivery either, but glass is heavy and bulky, so if you spend £300+VAT (Single Glazed) on any of our products you will receive FREE delivery to most** of the UK.

We deliver to the Whole of UK.

DGU's - £75 (Palletised) Fire Rated Glass - £50 (Palletised)

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