Couple reasons. The first being that with their TV etc they act like they’re experts in the hobby. So they push people to buy certain things like Red Sea tanks for instance which really isn’t right.
They also are quietly buying different brands in the space such as eco tech and whatever brands make ai primes and are refusing to carry other lines to shut down the opposing companies.
In other words they are killing certain brands in the space and turning into just an amazon while killing products.
Plus they’ll overcharge you if they can. When I was new to the hobby I paid nearly double for instant ocean salt. Never again unless there’s literally nobody else who carries the product I want.
