Strong bond. Larger than expected. By Jasper on 10/22/2014
Jasper would recommend this product to a friend
I purchased the smallest size, and it's quite a bit larger than I expected. Expect to have trouble getting into tight spots, but very rapidly clean open areas.
The magnet bonds stronger than all other scrubbers I have used. I don't feel like I'll loose the inside piece if I move too quickly. It's secure and scrubs well.
Even works on Coraline By Johnny Sea on 9/23/2014
Johnny Sea would recommend this product to a friend
Purchased the Piranha and it is strong enough to even work through built up Coraline. Like others have said be careful with these they will snap together and catch your finger! If you let these get together without something in between be ready for a workout.
much better than a mag float By mark on 8/27/2014
mark would recommend this product to a friend
upgraded to a 1/2" thick acrylic tank, and the largest mag float I could buy locally just wouldn't stay connected, this is powerful and the pad they sent really scrubs well without scratching
love it! By Jennifer on 6/3/2014
Jennifer would recommend this product to a friend
I love this cleaner. the magnet is super strong, cleans really well and it has a much better look to it then a chunk of plastic for a magnetic cleaner. It would be kinda cool if they had different wood colors so you could match it to your stand. but it is a much more polished look than the others out there.
works like it says! By reef geek on 3/14/2014
reef geek would recommend this product to a friend
works perfect on my acrylic just have to wash the pad a little to make sure theres no sand or debris and you wont scratch otherwise yes it is very powerful magnet and will leave a nice owy
Pay attention before use! By AlexL on 2/6/2014
AlexL would recommend this product to a friend
It works just as stated. Only thing you must be careful with is that the magnet catches from the back side of the scrubber also. And if there's any hard build up, and you swipe, you more likely will scratch your glass. That's how i got a 6 inch scratch in my front glass :(
So please be aware of what side it's on before use.
Other than that its the best magnet scrubber ever used.
Great product By Smallreef on 1/14/2014
Smallreef would recommend this product to a friend
I have always had Mag floats; but with this new very thick acrylic tank, it just wouldn't hold on, let alone clean anything. Ordered the Floating Tiger Shark and I have to say I am very pleased; not only with its hold...these magnets are strong, but the cleaning ability, and the extra pads included. I feel this magnetic cleaner will last me much longer than any product I have previously used.
great product and very strong magnet By turbotone on MR on 1/13/2014
turbotone on MR would recommend this product to a friend
I've owned a few different types of magnetic cleaners and these are above them all.. what i would recommend is do not go with the plus 1 method with these bad boys.. get what your need in your size criteria.. these magnets are strong!!! a few swipes and its clean.. i could only imagine a stronger one will be very difficult to move.. definitely would recommend..
Beast mode magnet By Collin on 12/15/2013
Collin would recommend this product to a friend
This magnet is industrial strength. After a few pushes across the glass, your arm will get tired---and that's a good thing! Lots of power to clean those stubborn algae spots.
I highly recommend adding the algae scrapper with this magnet. Adding the algae scrapper lets you easily scrape away coraline algae.
This is easily one of the best investments I've made for my tank. The upfront cost may seem like a bit much, but in this hobby, you get what you pay for. Totally worth the purchase.
It also includes an extra felt and scrubber pad.
Tip: Keep the magnets apart when not in use, or else you'll stick the felt onto the cleaning pad.
Best magnet I ever owned By Matt on 12/6/2013
Matt would recommend this product to a friend
I purchased the Piranha Float black Fri/ The magnets are SUPER strong! You really have to put some effort into it in order to get it to slide. It gets the glass clean in only 3-5 passes.
Good product By Shawn on 11/5/2013
Shawn would recommend this product to a friend
These glass cleaners work extremely well and will remove calcified algae from your glass with little effort. I find the pads don't wear nearly as long as I'd like but with magnets this strong it's easy to understand why. I find if I use glass polish before cleaning my glass things move much more easily and makes the felt side last long due to reduced friction.
Worth every penny! By Roy on 8/23/2013
Roy would recommend this product to a friend
I purchased the Hammerhead a few months ago and love it. I used a mag float before and with my 1/2 inch glass it would fly off if I went too fast. The hammer has a very strong magnet the will smash your fingers if your not careful with it. I used to worry about scratching my glass but not with this one.
Very good product and worth the high price
AS ADVERTISED. BEST CLEANING MAG ON THE MARKET. By Chicago C4 on 8/21/2013
Chicago C4 would recommend this product to a friend
This product proves you get what you pay for. I don't see myself ever buying another brand cleaning magnet again. Bought the Hammerhead, and it's exactly what you expect -- awesome, plain and simple. Definitely more expensive than others, but absolutely worth it.
Powerful! By Chad on 7/22/2013
Chad would recommend this product to a friend
I purchased the Piranha Float when I first set up my saltwater tank. The magnets are SUPER strong! You really have to put some effort into it in order to get it to slide, otherwise the cleaner kind of "skips" along the glass and can splash the water around a bit. It gets the glass clean in only 3-5 passes. Other cleaners could take up to 10-15 passes. It is a little bit beefy and bulky, and can be hard to fit into tight spaces, so I purchased a smaller, weaker magfloat to clean the glass right next to the powerheads.
just too powerful for my 50 gal By Joe on 5/25/2013
Joe would recommend this product to a friend
I pickup the Piranha float, but I just find it a little too large and powerful for my 50 gal tank with 1/4" glass, so I find myself using a smaller mag-float instead.
Strong Magnet! By Dan on 5/22/2013
Dan would recommend this product to a friend
This cleaner has a super strong magnet in it. To the point where I start to put pressure on the stand (30g). It cleans well, but the price needs to come way down. It's a block of wood with some felt and a plastic block with velcro...
pay attention to the size recommendations By tramboneplayer5 on 5/18/2013
tramboneplayer5 would recommend this product to a friend
I used to have a 55 gallon tank and was planning to upgrade to a 140 gallon tank. I did not want to buy the piranha and then have to buy the hammerhead a few months later, so I just bought the piranha. I had to insert a washcloth and use the acrylic pad on my 1/4" glass because the magnets were so strong it would almost scratch the glass. Now that I have the proper sized tank for the magnet it works wonderfully. Looks good too.
Works great By Trojan on 4/7/2013
Trojan would recommend this product to a friend
I have only used this twice so far and it works great no issues straight out of the box ready to go.
works great. By Berg on 4/6/2013
Berg would recommend this product to a friend
Gets the pink coraline algae off pretty easily. never had a mag work this well. I also bought an add on scraper but haven't had to use it.
Very nice By Don on 3/27/2013
Don would recommend this product to a friend
I picked up a hammerhead for my new 155. I really like the quality of this thing. It looks well made and has a much better appearance than the mag floats.
Great on my 3/4" acrylic By Mike on 3/25/2013
Mike would recommend this product to a friend
I bought this cleaner for my 3/4" thick acrylic display tank. The magnets are strong and give a very good scrub to the inside of the tank...glad I spent a few extra bucks for this model. Much easier to keep up on my maintenance, I was getting tired of trying to clean in 30" of water from above with other tools!
Get's those stubborn bits off! By Sandra on 3/10/2013
Sandra would recommend this product to a friend
An excellent glass cleaner. Very strong magnet that is capable of removing those stubborn bits of algae on the glass that aren't touched by the cheaper versions. Also, esthetically more pleasing than a hunk of plastic stuck on the outside of the glass. Bought two, will buy another for my 3rd tank.
actually does what you want it to By monkiboy on 3/9/2013
monkiboy would recommend this product to a friend
excellent product. comes with extra pads for both sides of the glass (smooth sliding and algae destroying. VERY strong magnets. does the job. don't be overzealous and get larger than needed. use the suggested ones for the glass thickness you have otherwise you'll be getting a heck of a work out and putting your glass in potential danger.
really enjoying this product. it is my second!
Good magnet By Matt on 3/6/2013
Matt wouldn't recommend this product to a friend
Good magnet, not great. Much Stronger than a magfloat, but does not seem to clean any better. This float still does not remove stubborn coraline or other thicker algae. The strong magnets are not really needed to remove the types of algae this scrubber handles well.(film algae)
I'm using on 1/2 inch acrylic so it may be slightly undersized. I like it, I'm just not thrilled, maybe my expectations were just too high.