We are the manufacturer of these popular high-tech products for aquariums:

  • High-Power LED-luminaires Mitras
  • Aquariumcontroller ProfiLux
  • GHL Doser
  • KH Director
  • … and many more.

Read more about the finest products in the aquarium industry here.

Where to buy

GHL Webshop for USA

GHL Webshop for all other regions

If you need help purchasing our products just send us an email to: sales@ghlusa.com.


We take customer service very seriously. In order to best serve you, we offer you several support channels.

For warranties and repairs we recommend to contact your retailer first. If you require additional support please contact us.

For dealers

Interested in selling our products? Please contact us!

If you are from North America: sales@ghlusa.com

Other regions: sales@ghl-kl.de


Are you looking for documents, manuals, software, or firmware updates?

If so, please take a look at our download section.

Free Shipping

Free shipping on all orders over $150.

Help & Support

Do you have questions or need technical support?

We’re here to help.
Please visit our dedicated GHL support page
at www.aquariumcomputer.com.

Shipment to Canada

Looking to order from CANADA?

Submit your order and mailing address
via email to info@ghlusa.com.

GHL News
Aquatic Season Start 2019 Special Offer - all Mitras LX7 on sale for a short while only
Published 9/21/2019 in GHL (International)
Start of Aquatics Season 2019 No more compromises - Your tank deserves the best illumination! Only for a short time: Special Offer LED-fixture Mitras LX7 Models with 4 clusters: Only 395€ instead of 471€ Models with 6 clusters: Only 647€ instead of 731€ (recommended retail price Germany net, without VAT and shipping, offer only valid for...read more ❯
Reef A Palooza Chicago October 2019
Published 8/26/2019 in GHL (International)
GHL at #reefapaloozachicago, booth #117
World premiere: See the new ION Director live in action! Fully automatic measuring of Ca, Mg, K, Na and NO3 without reagents. See you at booth...read more ❯
The new high-power LED aquarium luminaire Mitras LX 7X04
Published 5/21/2019 in GHL (International)
Mitras LX series with 4 clusters GHL is proud to announce new models of the Mitras LX series of high-end LED aquarium lights developed and produced in Germany: LX 7204 for seawater LX 7004...read more ❯
New Aquarium Controller Models: ProfiLux Mini and Light WiFi
Published 5/18/2019 in GHL (International)
ProfiLux Mini
ProfiLux Mini and Light - our entry-level controllers now with WiFi Maximum functionality in a minimum of space The compact aquarium controllers are now available with an integrated WiFi module. In addition to operating via USB, the advantages of our GHL Connect app and our myGHL cloud service can now also be used. Access your aquarium controller from...read more ❯
Post Title
Published 3/11/2019 in GHL (International)
My current tank is a modest Red Sea Reefer 170. It has been running since October 2016 and supports a varying mix of fish, corals and inverts. It's as much of a mixed reef as I could achieve on a small scale. The filtration is taken care of by the rock, siporax, skimmer and the harvest of macro algae from a small DIY refugium. I perform water changes every week and use a doser to maintain...read more ❯