The only reason being is because someone told us that the u3 isn’t strong enough for a 160L tank and would need the u4. We have brought the u4 but just seemed a bit much for our guppies when they were swimming
Hi guys.
It’s just a query really, we have a 160L tank for our tropical fish & currently have a fluval u3 filter in place. We have 24 small tropical fish in there at the mo. We were thinking of swapping it for a fluval u4 filter, although we’re worried it may be too strong for our guppies. Any...