OASE Indoor Aquatics Biomaster Thermo 250,Black

The Oase Thermo Biomaster 250 canister filter has truly impressed me with its performance and features. Here are the key points I found noteworthy:Design and Build Quality:The filter is well-constructed, featuring a sturdy design that feels durable. The compact size makes it easy to fit in tight spaces, especially in my cabinet. The integrated heater is a game-changer, eliminating the need for an additional heater in the aquarium.Ease of Installation:Setting up the Thermo Biomaster was straightforward. The user manual was clear, and all necessary parts were included. The quick-release valves make it easy to detach the filter for maintenance without creating a mess.Performance:This filter provides excellent water clarity and quality. The three-stage filtration system (mechanical, biological, and chemical) works effectively to keep my tank pristine. The adjustable flow rate allows for customization based on the needs of my aquarium, which is a nice touch. Though I keep the flow rate fully open.Heater Integration:Having a built-in heater is incredibly convenient. It maintains stable temperatures, which is essential for aquatic life. The heater is reliable and adjusts quickly to changes, ensuring a comfortable environment.Maintenance:Maintenance is a breeze with the easy-access filter media trays. I appreciate the reminder for maintenance intervals, which helps me stay on top of cleaning without guesswork.Noise Level:I found the noise level to be minimal, especially compared to some other filters I've used.Conclusion:Overall, the Oase Thermo Biomaster 250 is an outstanding canister filter that combines effective filtration with convenient heating. It’s perfect for aquarists looking for a reliable solution for their tanks. I would highly recommend it to anyone looking to enhance their aquarium setup!

I LOVE IT! I've been using two of these Thermo 250's on my freshwater 55 gal, for 3 weeks+ now. The Thermo 250 cost a lil more than most canister filters, but has 2 great features that make it worth the extra price. 1: It comes with a built in heater which is great, because that's less clutter in your aquarium. 2: It has a pre-filter on the intake that can be pulled out and cleaned separately, so you don't have to always clean the whole canister, and you can keep that good bacteria growing in the main filter trays. 3: It comes with 4 trays to add media too. 4: It's super quiet, my 60 gal rated air pump is louder then both of my 250Ts combined, and the air pump really quiet. I have not had to do any maintenance in my first month of running and the water flow is still very strong in my heavily fish stocked/planted aquarium. I have to be honest though; I'm only using the coarse circular intake filter pads that came with it, because I upgraded just about everything else. I also added jardli glass water intake and glass water outtake for that kool less clutter look. This is because I did some serious research on the net and good ol youtube. After a long search on all types of aquarium filters ie.. hang on back, canister, sponge, under gravel and sup, I came across this Thermo 250 Canister from Oase. Now just about all if not every youtube video on it was from a none english speaking country. Then I seen this random video that said "pimpmyfilter". I clicked on it and some British guy named the "pondguru" was giving a demonstration on how to make the Thermo 600 model more efficient. After watching that video I was completely hooked/sold on his way of making the Thermo Canister filter more efficient. I didn't do the drilling though, cause it doesn't seem to be needed, the water flow is still very strong. With that being said I can't give an honest opinion on how good the filter media is that came with it like the meduim and fine pads and the ceramic balls. Because, I pimped out both of my Thermo 250s from start. I am using the original black fine pads for the prefilter, because they work the best for trapping muck and not letting it through to the main filter. No matter what type of filter you get whether it's this one or another model or brand, I highly highly recommend that you go on YouTube and type "pimpmy(filter name here)filter" ie pimpmyoasethermofilter, pimpmyfluvalfilter, pimpmywhateverfilter. I promise you that that will be the most helpful thing you ever did when it comes to searching for and aquarium filter. No-one on the internet that I've seen is doing anything remotely close to what that guy does to aquarium fliters. He didn't pay me or ask me to promote his channel. He'll probably never know that I'm promoting his work. I'm just giving him mad props because he deserves it. Watch and see, and I bet you'll come back looking for this review to say that it really helped you.

I took a chance as these didn't have a lot of reviews or videos online.I am using this in a mixed reef tank and it could very well be the perfect canister for this situation. To start it is silent!. When I first turned it on there was a slight water trickle noise which completely went away after a few hours. I suspect it was still purging some air pockets during this time. But now it is completely silent - no hum, no water noise, nothing. The only way I know its running is to look at the return line and see the water moving out into the tank.The pre-filter area is awesome. Oase offers 30ppi, 45ppi, 60ppi and 45ppi carbon sponges for the pre-filter. Mine came with the 45ppi carbon sponges. I have changed these out to the finer 60ppi sponges which are equivalent to approx 250 micron filters. With the 60ppi sponges I rinse them thoroughly every week but the process of doing so is so simple and quick. The benefit is my water gets a polished look and the canister stays clean so I dont have to open and clean it very often. I run purigen in the canister so I do have to open it once a month or so to replace and when I do the inside is virtually detritus free.The flow is superb. Inside the canister I have 1/2L of Seachem matrix in the bottom basket, 1/2L of Seachem matrix in the next basket, an empty third basket, and 100ml of purigen in the top. I let the prefilter area handle all my mechanical filtration and try not to cram too much media in the filter to slow it down. With this setup I am pushing 208 gph up 32" to my tank. (measured via an inline digital meter).I connected the heater to my JBJ controller for the first week to verify the accuracy of temperature and it was spot on. It maintains my 48 Gallon tank at a consistent 79 degrees.