Anyone know anything about the JBL cristalprofi range too ?
Also, I have been looking at a myriad of different makes. AQ1, Sera, JBL, Tetratec, Eheim etc etc. All seem to have different media formats. Some are heavy on ceramic and light on sponge/ filter wool etc. Others the opposite.
In the AQ1 I have (which seems similar in theory to the JBL) I have ceramic noodles with sponge on top then ceramic chunks with sponge on top then carbo sponge with polishing wool on top of that.