Discus prefer a pH of 6.0, but I would recommend 6.5 so that you donât destroy your bacteria cycle. Temperatures should be around 27C-28C (80.6F - 82.4F). Discus canât tolerate ammonia, nitrite, or too much nitrate, so itâs a good idea to thoroughly cycle your tank before adding them as they are big fish.
lip lock definition, lip lock meaning | English dictionary. [. 10 a gas bubble in a hydraulic system or a liquid bubble in a pneumatic system that stops or interferes with the fluid flow in a pipe, capillary, etc. 12 tr to secure (a building) by locking all doors, windows, etc. Collaborative Dictionary English Definition.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  lock(noun) a fastener fitted to a door or drawer to keep it firmly closed. 2  lock, curl, ringlet, whorl(noun) a strand or cluster of hair. 3  lock(noun) a mechanism that detonates the charge of a gun.