Cowfish - LongHorn, Lactoria cornuta Long Spine Sea Urchins this is really a fish

this is really a fish for the experienced fish keeper

Tridacna clams are also filter feeders and constantly filter the water for small particulates

39 grams (40 grams) of Nyos® PURE® are required per liter

Carbon should be replaced once it has reached approximately 50% of its original volume

and a light tan spot behind the eye

Cowfish - LongHorn, Lactoria cornuta Long Spine Sea Urchins this is really a fishA peaceful fish that is best kept with other non aggressive species due to it being easily spooked. If this fish gets stressed it can release a toxin into the water which can wipe out a tank. This is rare but if you see the cowfish being picked on or near death remove the fish or the cause of the aggression. If the toxin has been released then do water changes. For this very reason, longhorn cowfish are not recommended for the beginner marine fish