JBL Denitrol 250 ml, Bacteria starter for adding aquarium fish to freshwater and saltwater aquariums

Does what it say on the label, would do without it for my fishtank

I've been sceptical of bacteria in a bottle but decided to give it a go when setting up a 350L planted tank. I already had a couple of small tanks and was moving house at the time so I needed to be able to get the fish in the new tank ASAP. This was the perfect product for that.Within a few (3-4) days the tank had fully cycled. Daily tests showed the ammonia (from the soil) drop, nitrite rise and then fall, leaving behind a large amount of nitrate which cleared with a big water change. This only worked as well as it did for me because the soil I used leached a fair amount of ammonia for the bacteria to feed on. Make sure you have a source of ammonia either by adding it manually, through aquarium soil, or by adding a few fish as per bottle instructions. I'd recommend the first two options over adding fish but I appreciate in some situations (like moving house) this wont always be an option.Brilliant product, highly recommended especially for planted tanks, but please follow the instructions or it wont work.

I used to buy a product called bactinettes that allowed for instant fish stocking and maintained a zero level of toxins,however it is no longer available in the uk.Denitrol is the closest thing i have found to it,and now use it instead. it is a must for a healthy eco system.and happy fish,i would recommend this product.

This stuff actually works, only bacteria product that I found that did what it said on the bottle, would not use anything else.

Does the job intended

Top of fluid bottle missing used to measure dosage.

Again gmaqua have failed to get the product to me.