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
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 ❯
Post Title
Published 3/11/2019 in GHL (International)
I have a 1700 liter saltwater with all ghl lx7 and p4 which is 2 month old and now I'm extending the sump with a frag tank where the mitras would fit...read more ❯
Post Title
Published 3/11/2019 in GHL (International)
Hello, I have 96 liters aquarium, 60x40x40cm. In 2018 I earned second place in the Romanian Aquascape Contest. The tank was illuminated by a Dennerle Trocal 30w lamp. I want to try the new...read more ❯
Post Title
Published 3/11/2019 in GHL (International)
hello, my name is Giuseppe gattuso: this is my reef 120x55x55 (cm). light 2xgnc bluray (italian led light) 2x vortech mp 40 QD Skimmer lgm 600 sp I use fauna marin products: ultra amin, coral sprint, ultra min S and balling light with ghl doser 2.1 (fantastic dosing pump). I would be very happy to try the New Mitras Slimline (Actinic blue) in order to have much more blue and more fluorescence for...read more ❯