Help With Mave Maker

[jamesmacc]

hi folks. currently running 2x 1200lph external filters and a koralia powerhead but been thinking about getting a wave maker with 2 power heads for a bit of extra circulation, there are a couple of dead spots in the corners of my tank were the poo lies. can anyone tell me the difference in these two, they look the same product except one is imported from china and only has a 2 pin plug which i will need an adapter for, is that the only reason its like £40-50 cheaper? here are the 2 links
http/www.ebay.co.uk/itm/2-x-3000L-H-Marine-Wave-Maker-Aquarium-Fish-Tank-Powerhead-Timer-Boyu-WM-4-/310357346690?pt=UK_Pet_Supplies_Fish&hash=item4842bd4982
http/www.ebay.co.uk/itm/BOYU-Aquarium-Waver-Wave-Maker-x-2-Form-Control-WM4-/180358912889?pt=UK_Pet_Supplies_Fish&hash=item29fe3a9b79#ht_3706wt_1037
am i going overkill since its a freshwater tank, will the wave put stress on the tank glass as the wave moves back and forward

 

[ainsy]

I am pretty sure that they are the same, but by the time you add the £35 postage from HK and get the 2-pin converter and wait ages for delivery you may as well get the one from the uk!

I had several much more powerful wavemakers on my tank and if there was any stress on the tank it was never apparent.