KOIKA OBIO Aquarium Water Treatment, Quick Effect (After 8-10 Hours), Improvement of Digestion and Immune Systems, Enhance Growth of Fish & Shrimp (Liquid, 300ml (10.14 fl oz))

As advertised highly recommend!

I own 13 tanks, both fresh & salt. Been using this product for a 1.5 months now. We have used it with my sons goldfish tank, my Discus tank and the 6 new Betta tanks we setup recently. The new tanks were trying to establish the nitrogen cycle so the water was cloudy. I didn’t find this product helpful in speeding up that process. No odor when using it. The bottle is small you don’t get a lot.

Don’t buy it waste your money, the water never look clear.

to kill bacteria and tank not clear. not really even though I replaced water filters still not working properly.

I'm not sure that I see a difference. The jury is still out.

I absolutely hate the smell of this stuff but it seems to work okay lol. No complaints other than the smell.

This has really made a difference for my freshwater tank. A little bit goes a long way and be prepared for some green algae growth in your aquarium, but the fish really seem to have improved and are very healthy now. Our Beta fish also became more vibrant and active.

I have several cycled tanks, and even when I setup a new tank, I like to use existing pieces from those other cycled tanks to add helpful bacteria to aid in establishing a new healthy environment. However, I do also believe in using additives that will help this process, and this OBIO seems to be a nice choice for just that. I always add this when doing water changes as well, as anything harmful that can be introduced is countered by this additive. I was also impressed on how much it reduced cloudiness after feeding my fish. All in all, I can recommend this as a good supplement for every any aquarium. Since it is a more concentrated formula (10ML for 26+gallons) , a little goes a long way. Making it as affordable as most other options available, a solid value.