Coral reef tanks need calcium reactors, which is a device that keeps alkalinity levels in balance. It also releases calcium in the water to keep the supply of that element at a constant. Since corals use up large amounts of calcium over a short time period to build their exoskeletons, it`s important that there`s enough calcium supply at all times in the tank.

There are many brands of calcium reactors in the market today, and one of the more well known reactors is made by Koralline. Koralline reactors are user-friendly and efficient - two characteristics that make them popular choices among aquarists.

Koralline reactors come with a lid that has a space for a pH probe. The lid also allows a good view of gas levels within the reactor.Thus, the lid of Koralline reactors aren`t just covers - they are essential parts of the system.

If you still have the old lid, or if your upgraded lid gets lost or broken, you can always replace it with the Replacement Korallin C-1502/3002 Reactor Lid Pet Store. You don`t have to buy a new reactor just because you don`t have a functional lid. Now, you can just get a replacement for it.

The Replacement Korallin C-1502/3002 Reactor Lid has the same quality as the original lid that come with the purchase.

Korallin Reactor Lid for C1502/C3002