Animals are believed to be homeostatic by maintaining relatively constant body nutrient content independently of changes in diet. Phosphorus (P) is one of the most important elements for fishes as Loricariids. which are covered with armor-like bony plates. These species are expected to maintain nutrient homeostasis. https://www.roneverhart.com/Echo-Fix-EF-P2-Spring-Reverb-Pedal-p32083/