Is there a doctor in the house?

[Dave H]

Having trouble my Duncan stopped opening and now the trumpets are looking strained and algae is growing on one. No ammonia , nitrates, nitrites, or phophate. Calcium is 450 and alkalinity is 9.1. I have a 1 k gyre medium flow and just a Fluval reef Led set at 100% blue and 50% white which I would think is only moderate amount of light. Tank is about 7 months old . Hammers and torches and softies and sponges are doin great. Any thoughts would be much appreciated thanks

 

[stingythingy45]

How's the temp and what do you use to check the salinity?
Any critters in the tank that pick at it?

 

[aresangel]

Swings in alkalinity or temp can stress them. The fluval reef light is pretty underpowered in my experience. Unless thy upped their bulbs I was getting very little light with mine when I had it.




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[Dave H]

Swings in alkalinity or temp can stress them. The fluval reef light is pretty underpowered in my experience. Unless thy upped their bulbs I was getting very little light with mine when I had it.




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My salinity is .025 I use a refractometer that I calibrate each use but my alkalinity has been swinging between 8.4 to 10.4 after I started putting kalkwaser in my top off. I'm trying to dial it in so that could be it and I don't think the light is strong enough to grow sps

 

[One Eye]

That alk swing is probably not helping. Kalk in top off can do that. Warmer days and there is more evaporation so more kalk cooler days you get less.

 

[dz6t]

Give them a dip with seachem reefdip.


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