This is such a fantastic and easy to use product. I have a horrible red slime outbreak that I could just not control. I follow the directions but ad only about 3/4 what they suggest and my red slime is gone in 48 hours. Large water change and your tank will look fantastic. I have a very diverse reef and none of my corals are ever negatively effected when I use this as long as I don't go over 48 hours, do a large water change, and run carbon.

if your aquarium is full of red algae, this is what you need. I loved it, worked fast and now it looks absolutely outstanding!! Get product, excellent shipping!

Destroyed the red slime in my tank and left it looking perfect! Easy to use and didn't harm anything else in my tank

Started to get an outbreak of cyanobacteria in my tank. Mixed in the recommended dosage into a new batch of water for a water change. I brushed the growth off of my LR and got as much as possible out with the syphon. Added the clean water with the chemi-clean and haven't had any problems with cyano since, and I run my lights aboout 14 hours a day.

I was very skeptical, but this stuff worked. It took a little longer than I think it is advertised, but the cyno is gone, so I don't care. No corals in my tank, but it didn't harm the fish or inverts.

Nothing kills cyanobacteria like Chemi-Clean. It works every time, period. It recommends doing a 10 or 15% water change, but I don't worry about it.

I've been plagued by red slime algae almost from the start in my Penn-plax 58 gallon saltwater marine tank. I had tried beating it with Phoszorb (my aquarist at the LFS said the high-phosphorous content in Florida water was the culprit), but only enjoyed slight improvement. Leaving the lights off for weeks at a time would clear it up but it always came back in a few days. This time I tried Chemi-Clean, although I had great fear of adding a chemical to the aquarium environment. On day one I took the carbon out of my canister filter, added the recommended dosage and waited. 48 hours later I did a water change and added back carbon to the filter. By then it was clear that the red algae was disappearing. Now on day four it is all gone! Water stayed brilliantly clear and the fish, starfish, snails, shrimp and anemome were completely unaffected. I am now a convinced...if it stays gone until next water change I'll be a true believer! I'll repost if it comes back too soon.

At about the one year point I started getting a cyano outbreak in my nano. I tried lights out for three days, reduced feeding drastically, and performed more frequent water changes to no avail. I finally broke down and purchased chemi-clean. Worked like a charm. I was very careful to follow the directions and under dosed my tank just a little bit. Cyano was gone in a few days. It's come back once since and chemi-clean worked like a charm again. Just need to determine the root cause.

good product have used it five times. I have bought this product two times does a good job cleaning up the tank.I will buy this product again.

Fully satiesfied, was received even faster than ecspected.Great price and great product. Was battling cyano complete.Send my best review.

This product killed off the cyano outbreak in my reef tank in about 3 days without harming any of my fish or coral. I deducted 1 star because it over activated my skimmer and continues to provide problems after 3 25% water changes. I will update again if I notice any other changes.

First let me comment on the person that lost all his fish and gave this product a 1 star - not sure what he did wrong - maybe put the whole bottle in or maybe he is one of those "leave negative comment" people that works for the competition or he had something MAJOR going on with his tank before he started treatment but rest assure - it will NOT kill your fish if followed directly. I've been doing fresh and saltwater for over 20 years now - my tank is a 300 gallon saltwater fish only. In the last 6 months i've been battling red slime algae - parameters are all in check - my final straw was 30% water (60 gal) every week for 5 weeks , cut my lights to 8 hrs / day , which really suck cause I never see my fish and finally cut to feeding every other day for a week (enough food to consume in less than 5 min.). My tank is far from overstocked - I have 18 fish (angles, tangs, butterfly, wrasses, damsels and a bunch of hermit crabs) - all under 4 inches and a 26" zebra eel also replaced my T5 light bulbs. Nothing worked and the slime keeps coming back. Finally researched what one of the best red slime removers were and this one came up many times. Before using I had about 65% slime coverage on my artificial coral -. Instead of a air stone as they recommend, I simply put my water return jet to skim the surface and had a power head behind it and it provided all the bubbles I needed. First dose took about 40 hrs to get rid of about 75% of the algae - did a 30% water change and added a second dose - another 40 hrs later it was literally all gone - did another 30% water change and now we'll see how long it stays away for - hopefully forever!! The product works like it should but it may require a second dose - ALL my fish are fine with no deaths not even the hermits - not even distressed during the treatment. I will probably dose once a month for the next few months just to keep the red slime in check. BTW - yes! turn OFF your protein skimmer - had mine off for the entire treatment - only to turn it back on after the second water change and it will foam like crazy - had to dial mine down about 3 notches from its normal position - so keep a eye on it for a few days afterwards.

Work's as advertised gone in 3 days! No problem with tank life, if you have a skimmer you will need to run activated carbon and turn the skimmer down for a day or two.

I didnt believeMy reef was full of cyano! Afrer the first treatment they disappeared, and fishes and corales seems to stay well.It works

I added this to the water just as directed. Took care of the problem within a couple of days and I have not had the problem since. I did not change out the water like it said on the box and my fish were unaffected.

This is the only stuff that seems to work to eradicate red slime without unduly stressing other life.Vendor shipped on time and as described

This stuff works great. Cleaned up the red slime in a day. I use it once a month before I do my water change.

Shipment arrived really fast, I was very pleased with that. I had a very bad red algae problem and chemiclean sort of did the trick. It took care of the algae on my rocks very well but not so much my sand. I did the standard dose on the box and did my 20% water change afterward. IT killed some of the algae but not all of it. I would recommend this product if you only have a little algae problem. Product mediocre.

I had a bad outbreak of cyanobacteria including greenish brown film over my rocks and corals. As a last resort I tried ChemiClean. After 48 hours the red cyano on the sand had completely disappeared but the film on the rocks was still there. I started my skimmer but it went crazy so I shut it off for another two days. At that time the film on the rocks had disintegrated -- looked like wet tissue paper so I sucked out what was left.Corals look okay except for a clove that has not re-emerged. Maybe in time.

I have had a salt water aquarium (24 Gallon) for almost 5 years now and after about 1 year it started to grow the cynobacteria that began coating the live rock in red slime. It got really bad before I found out what it was and how to get rid of it. I have always used the Chemiclean product to get rid of the slime. I need to use it about every 4-6 weeks to keep the slime under control in my tank, I admit though that I only do an average job of cleaning it and doing the proper water changes which if I was more vigilant would probably cause the redslime to grow slower.I used to buy the smaller sized bottle which each lasted me about a year each but this time I decided to get the bigger one that is cheaper overall and should last me quite a bit longer. Regular use of this product, allowing with water changes, should keep your tank in check. My fish and invertebrates never have seemed to suffer any ill effects from using this product in the recommended manner.