Keep your water values permanently stable: With GHL metering pumps the automatic addition of fluids is a breeze.
Dose trace elements, fertilizers, balling salts, or water, precisely to the milliliter. Programming is done by specifying the daily dose amount and the number of doses per day. Alternatively, you can also use timer functions if you wish to dose at specific times.
The high quality materials inside the doser ensure a long lifespan. If a pump needs to be replaced after many hours of operation, you can easily exchange it, thanks to the modular design.
The Doser Slave is available in versions with 2 to 4 pumps, pumps can be retrofitted at any time. Each pump can also be operated manually for easier replacement of liquids.
All GHL Dosers are designed and made in Germany. From start to finish, we carry out the engineering-implementation and development of all our products. Tests for market maturity and production also take place in Germany. Our goal is to develop long-lasting and well thought-out products by considering even the smallest of details. We want to give you the most out of our equipment and help you get the most out of your hobby.
GHL - Advanced Aquarium Technology
The versatility and functionality of GHL products are legendary. No matter if you own an aquarium, terrarium, or pond, GHL products can grow to meet your needs. They have been developing advanced aquarium technology since 1998 and continue to develop products that meet the needs of the modern aquarist. They listen to their customers` needs and implement features for all hobbyists to enjoy.
When GHL develops products, even the smallest details are considered. Safety and reliability are always at the top of the list! GHL products are field-tested in many different scenarios before they are released to the market. They understand the importance of reliability and give you this so you can succeed in fishkeeping.
GHL`s Aquarium Technology line consists of ProfiLux aquarium controllers, Mitras LED Lights, GHL Dosers, and additional modular accessories that can be used together or separately. Free apps and software keep you informed about your aquarium at all times. You`ll be able to perfectly simulate natural environments for your fish, corals, and plants. GHL is active on aquarium message boards and engages with their users on social media and at events around the world. They have a ton of free how-to tutorial videos on their YouTube channel to get you up and running fast!
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out.
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in up to 7 business days. Just spend $29 or more!
Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $2.99—or spend $250 and we'll upgrade you automatically!
Expedited shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.
Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!
You can also get bonus reward points by purchasing select items during special sales and promotions.