Oase BioMaster Thermo

I have a 200 liter planted aquarium, and this filter completely satisfies me!

Powerful, quiet, efficient, easy to service, and the integrated heater is the tip. Prefilter I clean after weekly maintenance of the aquarium in just 5 minutes.

I'm fascinated by this filter!

Thanks to aquasabi for good service!

This product has some glaring design issues, so much so that had I known them in advance I had bought a different filter. The design flaws:

1: how do you disconnect the pump from the tank for a big clean? Exactly, you cant. You have to install double-hose connectors. Works fine, but you do not expect that of a filter of 250€. Double-hose connectors (the cheap ones, by JBL) still cost some 35€

2. Connecting the hoses to the filter. Rather than tightening the hose onto the filter (like all other brands do), you tighten the filter onto the hose. The same is for the connection on the intake and spray bar. This crappy construction has had already the spectacular result that the connection failed, and the tank was emptying at a rate of 40l/min.

3. Priming. Solid engineering, but it just does not do the job

4. Air in the filter. You only get rid of it by shaking. Why not some solution Fluval has? This is supposed to be a top brand

On the plus side, the pre-filter is great, the in-line heater is great (though just enough for my 350l tank). But this does not compensate the horrible design flaws. Lets see if design flaws fall under the warranty; I would change the filter in a heartbeat