£249.99
Dennerle CO2 Fertilizer Kit 300 Quantum
Dennerle DISPOSABLE 300 Quantum is a CO2 plant fertilization system with a solenoid valve, timer, and disposable cylinder. CO2 (carbon dioxide) is the most important nutrient for lush, healthy aquarium plants. By using one of these systems alone, you will see marked improvement in plant growth and health. For aquariums up to 300L.
We do not offer refunds for livestock that arrive deceased (DOA) or for any losses that occur within the seven-day guarantee period.
Instead, any verified losses will be replaced free of charge with your next order, subject to the conditions below.
To qualify for a replacement, we require clear supporting photographs sent via email within the guarantee period.
If you experience any issues with your livestock or delivery — although rare — please contact us and we will always work to resolve the matter promptly.
Retail Customer Orders Tel: 07801323641
Email: retail@simstropicalfish.co.uk
We Will Always Try Our Upmost To Resolve Any Problems.
Please Select Your Delivery Date At The Checkout.
Insured, licensed courier delivery is £20 per livestock order
No minimum or maximum order value
All livestock remains covered by our 7-day guarantee
Any verified losses will be replaced with your next order upon receipt of supporting photographs via email
Courier Service Level Agreement
Our courier collects livestock from us on the evening before your selected delivery date. Delivery is made the following day before 1:00pm, with livestock maintained in the same condition and temperature as at collection.
Tracking details will be sent directly by our courier (DX) on the evening of collection. You will also receive a text message around 9:00am on the day of delivery with your estimated delivery time slot.
Please ensure someone is available at the delivery address to receive the livestock on the scheduled delivery date.
Please Select Your Collection Date At The Checkout.
Collection in person is free of charge
No minimum or maximum order value
All livestock is covered by our 7-day guarantee
Any verified losses will be replaced with your next order upon receipt of supporting photographs via email
Aqua Distribution Ltd
Unit 4, Fleet Business Park
Itlings Lane
Hessle
East Riding of Yorkshire
HU13 9LX
You will receive delivery or collection date confirmation by email within 24 hours of purchase.
Yes. Please ensure you have read and agreed to our delivery policy before placing an order. By completing a purchase, you confirm your consent to the policy.
Yes — if you need to make a change, we’re happy to reschedule to a more convenient date where possible.
If there are any changes to your delivery or collection date, we will contact you immediately
Currently, 95% of retail orders are delivered on the customer’s selected delivery date
Sims Tropical Fish does not operate retail stores open to the public
We manage and operate the logistics and distribution of aquatic livestock across the UK for both trade and retail customers
Due to the volume of livestock processed daily, we are unable to provide photographs of individual fish
Our experienced team will always select livestock as close as possible to the advertised images
All sizes listed on our website are approximate, as livestock is seasonal and naturally variable
Our website does not reflect live UK distribution centre stock levels
All livestock displayed is available for delivery or collection within 14 days of purchase
