Review on Zoo Med Laboratories Banquet Blocks by Linda Nelson

I have a large 165 gallon planter tank with 3 large plecos, 5", 6" and 14". I have 8 gars to clean the plants. The tab has been in the tank for a week and only the gars have been nibbling on it it reacts ORP readings in water if something dies and it reacts I see mixed reviews here some like this and some positive I ask positive reviewers to report updates to confirm they are still positive about this product I want this product to work The algae eaters in this tank are looking for food because the algae are being fought and the other fish get to the normal Pleco discs before them.