problems with slipper tongue coral

[d.french]

yes i am a newbie totally fascinated with salt water tanks doing my first right now its been 5 months. buy my slipper coral is changing colors its turning white and i'm sure thats not good. i have 75 gallon with the 4 strip compact light coral life 48", cause that was all i can really afford to put on right now don't know if it is not enough light but other corals are doing greatl



tank mates include blue damsil, maroon clown, pink spotted gobie, diamond gobie, yellow tang, lawnmower blenny, 2 arrow crabs, 2 emerald crabs, coral banded shrimp, peppermint shrimp, fire shrimp, 20 hermit crabs, 6 turbo snails, tongan conch, queen conch, 1 condi anemone, 2 rock/flower anenomes, 2 caribbean cucumbers, sand sifter starfish, 2 black brittle starfish, 6 flounders, feather duster (hawaiian), assorted mushroom rocks, star polyps, and some zoos assorted,approximately 65 to 70 pounds of live rock mostly fuji and some tonga rock.

using skilter 400 hang on filter with skimmer, penn plax 1200 cannister filter over kill for filtering but looks good. Any advice on anything else i might need, i use purple up, live plankton, coral vite (kent)

 

[minireefer]

The Polyphyllia Slipper Coral is a large polyp stony (LPS) coral often referred to as the Tongue, Mole, or Hairy Tongue Coral. Its genus name, Polyphyllia, was derived from the Greek words polys (many) and phyllon (leaf), which describes the leafy shape of its calcareous skeleton. Colonies of this species are often long and narrow, and arched or flat in profile, hence the common name "slipper" or "tongue." It is usually brown, but may also be cream or green. The Polyphyllia

The Slipper Coral is a solitary, aggressive coral with short tentacles tipped in white which can inflict serious damage to other corals in which it comes in contact. A preferable location would be on the bottom of the reef aquarium, lying on a fine sandy substrate, with adequate space between it and its neighbors. It is easy to maintain in the reef aquarium, which makes it an excellent candidate for the beginning through expert reef aquarist. It will require bright lighting combined with moderate water movement, and the addition of calcium, strontium, and other trace elements to the water.

It will benefit from additional food fed weekly in the form of micro-plankton or brine shrimp.
Your lighting may not besuficant for it

 

[d.french]

thanks for info it might be my lighting its good light but it sits on my lid for aquarium instead of using legs to put it on top of aquarium. worried about leaving open tank with light on top got kids and cats if you know what i mean, cats mainly. Gonna try all glass lid