Frequently Asked Questions (FAQs)

What is Nutritious Fish?
We're an online fishmonger offering free delivery of sustainable fresh fish and shellfish across Sussex. We also provide recipe inspiration and cooking tips to help you make super-healthy fresh fish and shellfish part of your everyday eating.

What types of fresh fish and shellfish do you sell?
Fish: we sell many different types of fresh fish - both white and oily - and these can be ordered as ready-to-cook boneless fillet portions, side fillets or whole fish (gutted & cleaned). Our high-welfare Loch Duart salmon and ChalkStream® trout is sashimi-grade and does not require freezing before eating.
Shellfish: we sell prawns, squid, live mussels, clams and lobsters, scallop meats and prepared crab meat.

Are your fish and shellfish wild or farmed?
We sell both wild and farmed fish, with a particular focus on sustainability. This means the majority of what we sell is sourced within the UK to minimise 'food miles'. We avoid selling any fish like fresh tuna or red snapper which is transported by air over long distances.

Sustainable farmed fish are sometimes a better choice than endangered wild fish species. Choosing sustainably farmed fish helps reduce the pressure on wild fisheries and allows populations to rebuild.

Salmon: we only sell Scottish Loch Duart salmon which is a high-welfare farmed fish. Loch Duart was the first salmon farming company in the world to become approved under the RSPCA Assurance Scheme (originally known as ‘Freedom Food’). It is also accredited by Label Rouge and also compliant with ISO 14001 which sets out the criteria for an Environmental Management System (EMS) improving resource efficiency, reducing waste, and it assures that environmental impact is both measured and reduced. The quality of Loch Duart salmon is such that it is designated sashimi-grade and does not require freezing before eating raw.

Trout: we sell ChalkStream® rainbow trout which is a high-welfare farmed fish. The secret to these beautiful trout is the famous Chalk Streams, Test and Itchen in Hampshire. Spring water that has been filtered through the chalk down land into underground aquifers, feeds these rivers. The water is rated class A by the Environment Agency, the highest achievable grade. ChalkStream® farms are certified under the leading quality standards and the RSPCA Assurance Scheme. The fish are grown to the highest standards of welfare, food safety and environmental and ecological care. The quality of ChalkStream® trout is such that it is designated sashimi-grade and does not require freezing before eating raw)

Flat fish: all of our flat fish - including plaice, lemon sole, Dover sole, brill and turbot - are wild and primarily landed from Sussex waters.

Mackerel: the mackerel we sell is from the Shetland islands and caught in the North Atlantic sea.

Sardines: the sardines we sell are caught in inshore waters in Cornwall. The Cornish Sardine Fishery is certified by the Marine Stewardship Council (MSC).

Mussels: we sell high-welfare mussels which are grown in the clean and pure waters of Basta Voe, in Yell, Shetland, providing the very best quality mussels available. Sometimes we also source our rope-grown mussels from Cornwall.

Clams: our clams come from Poole Bay in Dorset from a producer which is certified by the Marine Stewardship Council (MSC). Poole Bay is the second largest natural harbour in the world and the largest harvest area for Palourde clams in the UK.

Scallops: we sell hand-dived king scallops from clean, nutrient-rich Scottish waters near Shetland, which means they grow to be large and delicious.

How does your fish and shellfish compare to my local supermarket in terms of freshness?
It's much fresher - something you'll experience from the superior taste, texture and smell when you order from us. Read our blog post about why we think our fish is fresher and better than the supermarket.

How do you package your fresh fish and shellfish?
We use compostable plant-based and paper packaging. This means it can be added to your food waste bin, compost bin or garden compost after use and will break down into organic material in a matter of weeks. You can also freeze your fresh fish in its packaging.

Our branded paper bags are from a manufacturer which sources its paper sustainably and which is audited by the Forest Stewardship Council (FSC). This means they must meet strict criteria when sourcing their materials to ensure their paper is ethically sourced.

Our larger, whole fresh fish fillets are packed in waxed cardboard boxes to protect your fish during transit.

Do you vacuum-pack your fresh produce in plastic?
No - we don't pack any of our fresh produce in plastic like the supermarkets and other fish suppliers may do. We only use paper and plant-based compostable paper packaging for our wrapping and our delivery bags.

One of the main reasons supermarkets vacuum-pack in plastic is due to the length of time it takes to get fresh produce from its source to you via a lengthy supply chain. Vacuum-packing is a way of extending the life of fresh produce, so you should may want to question how old produce is if it's packaged in this way. Sometimes supermarket fish can be 20 days' old when it reaches you - or it may have been previously frozen, then defrosted before being moved to the chiller cabinet or so-called "fresh fish counter" in your supermarket.

Our fresh produce will reach you just a few days' after being caught or harvested as we buy direct from wholesalers who buy from the fishermen who actually land or harvest the fish or shellfish. We get it to you as quickly as possible without there being a lengthy supply chain in between, and the proof is in the eating. All of this means our compostable paper packaging is perfect for the job it needs to do - and you can even freeze your fresh produce in it.

We don't think there is any need to use plastic packaging if the produce you're buying is very fresh - so our advice to you is avoid supermarkets and fish suppliers who are using plastic packaging.

How do you price your fresh produce?
Clearly and transparently, avoid confusing “per g / kg” pricing as we think this can be unclear and is often a 'trick of the trade' used by some old-school fishmongers to make you think you're buying more than you are, when you're actually paying for bones, water or waste products. We prefer retail “per item” pricing so the price you see is the price you pay, and we also explain clearly what you're buying.

The boneless fillet portions in our popular Mixed, Oily and White Fresh Fish Selections each weigh 180-200g. A standard pack of butter is 250g so it’s around three-quarters of that. Our boneless fillets are more generous than the average supermarket portion which means they go further and offer better value-for-money.

We sell whole fish in a range of sizes which is indicated on each product listing. When you buy whole fish and ask for them to be filleted, there is natural wastage in the preparation process (skin, bones & internal organs). We aim to state the weight of the fish you'll receive after preparation so you know what you’re buying and how many people it will feed.

Do you offer free delivery?
Yes, we deliver free across Sussex on Thursdays & Fridays (minimum order value £20). Please visit our Free Sussex Delivery page to find out when we're next delivering to your area.

I've just ordered online - can I have a delivery today?
Unfortunately, we can't offer same-day delivery on most fresh items, but if it's something frozen or a sauce, then we might be able to add it to your delivery if you phone us before 11am, when we pack all the orders.

I don’t live in Sussex - will you still deliver, or post our order out to us?
Sorry, we don't currently offer postal or courier delivery of our fresh fish and shellfish. We only offer our free door-to-door home delivery service to customers in Sussex. However, please drop us a line at and, if you're close to one of our Sussex deliveries, we may still be able to help. We're always looking to meet new customers and spread the word.

Will you still deliver to me if I'm out?
Yes. We're happy to deliver to you if you're out. But due to the perishable nature of fresh fish and shellfish - and our compostable paper packaging - it's not advisable to leave deliveries out in the open for too long. If you can't be in for your delivery we're happy to leave your delivery in a fridge/coolbox in your porch, garden, garage, shed or outbuilding. Just add a note to your order when you get to the 'View Basket' page, before you checkout.

How do I contact you about changing a delivery day/time?
To change a delivery day/time it’s best to phone us as soon as possible on 07496 852133 to arrange an alternative time.

Do you have a shop where I can buy from you in person?
No we don't have a shop or sell in person from our prep kitchen - we're purely an online business.

How do I provide specific feedback about my order / your service?
We want you to be 100% satisfied when you buy from Nutritious Fish. We maintain high levels of quality-control, price competitiveness and hygiene. If there is a problem, we'd love the opportunity to rectify it immediately and we welcome all feedback.

If there is anything you’re not completely happy with, please contact our Customer Services team as soon as possible at or call them on 07496 852133.

I love your service! How do I provide a review and tell others about it?
We welcome honest reviews on our Google Business and Facebook pages. If you don't want to leave a public review but want to provide anonymous comments for us to use in our marketing, please drop us a line at We'll also reward you for any new customers you introduce to our servivce with a £10 shopping voucher.

Do I need to order fresh fish every week or can I order ad hoc?
You can order ad hoc, as often as you like. It's up to you. Ordering weekly is the best way to eat a healthy, balanced diet of at least two portions of fresh fish a week. However, you can also order your fresh fish fortnightly or monthly - in fact, as frequently / infrequently as you like.

TIP: our fresh fish selections come in three sizes: small, medium and large. So, if you're planning to be away for a weekend, just order a larger size one week and pop some your fish in the freezer to eat the following week!

Can I subscribe to have regular deliveries?
Yes, we have a range of great-value Subscribe & Save plans available for monthly or fortnightly delivery.

Do you supply fresh fish recipe cards with your orders?
No, but we have compiled a comprehensive selection of recipes and preparation tips on our YouTube channel.

These recipes and tips are focused upon the home cook and suitable for both beginners and the more experienced.

We don't create printed recipe cards as our aim is to be as sustainable as possible and - as with our packaging - we're minimising unnecessary paper to reduce waste.

I'm new to buying fish and shellfish - what should I buy and how much?
One of the benefits of ordering from Nutritious Fish is that we're always here to guide you on what to buy. Perhaps you have a certain recipe in mind or a particular ingredient you want to cook with your fish? Maybe you're cooking for a particular occasion, or number of people, and need advice on what quantities to buy? Please don't hesitate to contact us at if you need any advice about any of our products. We're always happy to help!

I'm new to using fresh fish and shellfish at home - how do I prepare and cook them?
One of the main benefits of ordering from Nutritious Fish is that you have the option of buying fully prepared and portioned fresh fish fillets that are ready for cooking.

However, if you need any advice, please head to Prep & Cook playlist on our YouTube channel.

How should I store fresh fish?
When we deliver your order, pop it straight in the fridge (in the compostable paper in which it is wrapped). Fresh fish is best enjoyed the same day it's delivered by us to you, or within 2 days. Each pack features a label with a 'Use By' date which will be 2 days after the date your fish was packed and delivered.

Alternatively, if you're planning to eat your fish 2+ days later, freezing is recommended to maintain freshness. To freeze your fish, place it straight in the freezer as soon as possible - it freezes well in the compostable greaseproof paper in which it is wrapped. It will be fine for up to two months after the 'Use By' date. Defrost your fish thoroughly before use and, once defrosted, use on the same day. Do not re-freeze.

Please remember to dispose of the compostable greaseproof paper in your food waste bin, compost bin or garden compost. It will break down into organic material in a matter of weeks.

How should I store live and fresh shellfish?
Live shellfish (without shells removed) should be stored in open containers in the fridge, loosely covered with clean, damp paper towels or cloths to prevent them from drying out. The optimum storage temperature is 4-8°C. Temperatures of 1°C or lower (especially freezing temperatures less than 0°C) can kill shellfish.

Store shellfish in airtight containers (boxes or bags) because they need to breathe
Store in water or directly on ice since the fresh water may drown them
Discard mussels, oysters, clams or any other live shellfish if their shells crack or break
Discard any shellfish if the shells are open and do not close when you tap them - live shellfish will "clam up" if their shells are tapped

Do fresh fish and shellfish contain allergens?
Yes, fresh fish and shellfish are classed as allergens, including:

Fish - the majority of our produce is fish
Crustaceans - this includes crabs, lobsters, prawns, shrimps, langoustines, crayfish and some stocks
Molluscs - this includes mussels, clams, cockles, oysters, scallops, squid, octopus, whelks and some stocks
Our products are labelled to indicate which of these foods are present.

This link to the Food Standards Agency website explains: what food allergy is; what allergen information food businesses must provide to you; the precautions you need to take if you or someone you know has an allergy