Power Magnet for All-Glass Aquarium

[fmuakkassa]

I have an 180g ALl-Glass Aquarium and need a Tunze power magnet to clean the front. I don't know the thickness of the glass. What model Tunze do you recommend (I've seen their prices range from $16 to $200!)
Thanks

[rvitko]

220.55 would be the best choice, 220.54 is an OK choice but will slip if you go to fast. I am out of 220.55 right now. The guy who made the magnets had a stroke so it will likely be a while. It is possible though that you may find one in stock at MD or Champion or Premium. Otherwise I expect in about 3-4 weeks they will have someone else on the job and I will get more magnets.