JBL Bacterial service kit for fresh water and aqua aquariums for the use of aquarium fish, 250 ml, Denitrol 23062

Can't praise this enough. Had a small issue and by the next morning it had cleared it up. Not often products do exactly what they say but this one did. Well worthy of 5* and have now moved over to this brands products after being unsatisfied by another leading named brand. If you're looking and needing a bit of help cycling buy this now.

After struggling with high nitrites and water change after water change I put two bottles of this in my 950 ltr tank and left it alone 2 days later nitrites reading nearly none existent I expect tomorrow they will be at zero. Fish looking amazing and now I know which products do and dont work.

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.

Perfect as you can add fish at the same time as the Denitrol, we waited 4 days and added 20 fish, 2 shrimp and 3 soft corals and all are thriving in a new Marine tank set up.

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

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.

Top of fluid bottle missing used to measure dosage.

Funkade som den skulle

Macht das was es soll. Keine Beanstandungen.

Bon produit

Excelente !!!

Ottivo Prodotto e buono il costo