New Tips and Tricks
AVOID AIR BUBBLERS
MAKE YOUR OWN CHILLER
RED CYANO (SLIME ALGAE) REMOVAL
ACCLIMATION OF NEW STARFISH
REMOVING ANEMONES FROM ROCKS, ETC.
GOOD STARFISH VS BAD ONES
WHY LARGER WATER CHANGES
GROWING SEAWEEDS AKA CAULPERA
REDRILLING LARGE HOLES
If you have a large hole in your tank or sump from a bulkhead fitting that is too small and you want to enlarge it, you will need to make a guide. Use your large hole saw to drill the larger hole in a scrap piece of acrylic or thin plywood. Place this guide hole over the smaller hole in your project and center it. Clamp the guide in place then redrill your hole. This can be done with glass or acrylic tanks and sumps. If you're drilling glass, use running water to cool the drill bit.
I may have this info somewhere else in my web site but here it is again. Back flow valves don't work reliably. They often get small sponges growing where the flap seals which may stop the gush of water but it doesn't seal tightly. If the power goes out, the dripping water will eventually fill your sump.
To solve your dilemma, drill an 1/8" hole (in the return tube inside the tank) just below the water line. If the water begins to siphon backward, the hole will cause a siphon break as the water drops.
RTN - RAPID TISSUE NECROSIS
SPS (small polyp stony) Corals like acroporas, montiporas, etc can get a non-specific bacterial infection that can wipe out a colony in 24 hours. The only possible way I have been able to save parts of the coral is by IMMEDIATELY fragging the healthy ends of the colony. Glue them to small rock pieces. Give them a dip in a Betadine solution (like the doctors use. add drops to water until its is very lightly tinted brown.) I have Betadine available in the shop. Then move them to a different tank. This is the best I have come up with. Putting super glue or CA glue over the dead area and slightly touching the tisse will also stop it.