High SG questions

graveyardworm · #1 02/12/2005, 05:45 PM

I just got my new refractometer

, and found out my hydrometer was way off. My SG is at 1.030

. I thought I was keeping it at 1.025, I have various corals and fish and will be bringing it down slowly.

My questions is what kinds of adverse affects does a high sg have on the tank as a whole.

I've noticed poor polyp extension on some corals over the past few months.

My LTA which was happy and growing has shrunk and wont stay put.

I've had losses during acclimation which were previously a mystery.

I have some type of algae ( I think dinoflagelates ) which are selectively damaging some corals tissue.

Could these things all be caused by high sg? Are some of them less likely?

want2reef · #2 02/13/2005, 05:23 PM

I just found I had the same problem.

Kevin

Stevan · #3 02/13/2005, 05:27 PM

Good move getting a refractometer. Remember to periodically test and recalibrate it if necessary.

ChrisPrusha · #4 02/13/2005, 05:40 PM

I had the same issue you did about 4 months ago. I lost my nassarius snails and a fighting conch (I think)...but that's about it...everything else looked fine.

I finally purchased a refractometer when my tiger tail ended up in my overflow...I figured something must be wrong. That said, I was still surprised when the reading was 1.030.