Brightwell AquaticsMicroBacter Clean - Microbial Culture & Enzyme Blend Fish Tank Cleaner - Cleans Live Rock Surfaces for Saltwater Fish Habitats - Aquarium Water Treatments, 67.6 fl oz

This stuff is pretty damn good. Poured a bit in, topped off my tank with distilled water, through in a cheap air bubbler, cleared up green algae on my rocks and some red/cyno algae within 4 hours, no joke. No syphoning or scrubbing needed. 10/10.

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Good product. My zoa's like it.

I use several bacteria products. They won’t work fast but combined with good maintenance they really do work on keeping a tank looking sharp.

I had once used this to treat for a major hair algae outbreak. I tackled that in a few different ways but this product seemed to definitely make an impact, it’s more than just bacteria.I recently had back surgery and couldn’t keep up on water changes so I decided to purchase this and use it following the weekly maintenance and I went roughly two months with no water changes and my tank looked just as good as it always has. I’ve been purchasing the 250ml bottles cause they’re selling for around $5 which comes down to less than $2 a week to maintain my 100 gallon tank

I was constantly fighting hair algae in my fish with live rock and macro algae until I started using this. It not only made the hair algae disappear but it also brighten up my rocks. I have just ordered the sister product for my freshwater tank.

I had problem with cyano bacteria and do frequent water changes to remove it. Each time after raiding it from the tank, it came back three weeks later. It was frustrating the hell out of me so I decided to give this a try. Surprisingly after the first 24hours the cyano started to reseed and though it is not completely gone. It hasn't gotten worse. So I will do a water change to get the rest and continue to add this as maintenance.

Took two months to drop ammonia to zero and still no nitrates . Have nitrites and believe it is mainly through a natural cycle than this bottle . Try another brand. I’ve literally thrown my money down the toilet with this product

The product arrived with a cracked cap and there is no safety seal on the bottle. The product had leaked a bit and is all over the bottle and box.

I've been using this product for over 10 weeks, algae on rocks still exactly the same (Id expect at least a small difference but there’s been no reduction in algae at all)I reduced my lights to 6 hours a day and maximum 50% intensity.Ammonia - 0Nitrites - 0Nitrates - 5Phosphate - 0Very tough green algae on rocks, tried scrubbing off with toothbrush but doesn't remove anything. So I bought this as it says it will clean rocks however, this has not been the case.Waste of money, might as well have been adding water. Will not be using Brightwell products again - Disappointed.

Spot on

Use very little and get great results with this productStarting a reef tank, a must have