Feeding aquarium fish is a lot of fun, but it also needs to be done properly. Too much food causes aquarium pollution and too little food starves the fish.

How much current do you need in an aquarium? From a tropical stream in south Japan biologist Heiko Blessin explains how important the current is.

Very small aquarium fish need very small food to fit into their small mouths!

Every week pond owners need to check how high the pH-value is and whether there is still enough carbonate hardness (KH) to keep the pH-value stable. Both values are basic requirements of a functioning pond.

What is carbonate hardness? Why is carbonate hardness like life insurance for your aquarium? What is the difference between it and general hardness and how does carbonate hardness work in your aquarium?

Shark researcher Dr. Erich Ritter has died

Dr. Erich Ritter, probably the most famous shark researcher, died on 28 Aug 2020 of a heart disease in his adopted home of Florida at the age of only 61. Heiko Blessin, head of the JBL research expeditions, has a personal obituary:

JBL Test App Recommended on TV

In the context of setting up aquariums, the popular television programme “hundkatzemaus” on VOX, which has been running for more than 800 episodes with almost 1 million viewers per episode, also dealt with "water tests".

JBL decides not to have a nitrite minus liquid product

It’s a good job JBL has such capable scientists in its research department! Our competitors had brought out a liquid product to combat nitrite and some of our customers were asking us when JBL would launch one too.

JBL has the largest range of water tests worldwide!

With 24 different water analysis tests for freshwater and marine aquariums and ponds as well as 8 different test cases, JBL offers the widest range of water tests worldwide. The second place is shared by two American manufacturers with 15 individual tests each, but with only 0 and 2 test cases respectively.

JBL Colombia Expedition to take place twice

The number of registrations for the JBL Colombia Expedition exceeded all bounds. Well over 200 people applied for the 36 places, which were unfortunately predetermined by local capacities. So for the first time JBL decided to hold the expedition twice!