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Paul - where can I find this mag/ca relationship? This makes it important to check mg levels as we try to maintain ca level @ ~420 ppm.

Alk has been in the 7.1 to 7.7 range. I have been increasing the dosage. I dose similar amount of calc (a little less) as Alk. The few times I check calc was about 400. I check Alk almost daily. I have not add any new coral to the tank for at least 1 month now. I wonder if it would eventually...

Mag is 1100. Have not tested for a long time. So it's low. Used to get 1500+. But I doubt it's the reason. Spreading out from one point like a virus. Coraline on the rocks is ok.

Have you seen this before? Water parameter is good and corals are doing good. Started from the center then spreading for about 5 days now. At the spreading edge there is some mucus.

natureef style denitrator.

Paul - the bulkhead already has a seal on one side but the other side is just plastic. I was careful to tighten then usually but I wasn't thinking this morning. Anyways I lost my confidence in this and will use a 20g instead.

This really sucks now. Holes were drilled good but cracked the tank when tightening the bulkhead. :mad: And just glue the bulkhead in too.

I am but you're too far.

Thanks Earl. That makes me feel a little more comfortable.

I have a frag tank as well (although not yet running). I have the sump 2ft off the fl and the frag tank 3ft off the fl.

Try to reduce the head by setting up the sump higher. My setup has 10 ft head and only use about 50 watts. And agree with the flexible PVC much easier to run and fewer 90 degree elbows means less head loss.

Need to clear the frag rack. All frags are very encrusted unless otherwise noted. $15 Strawberry short cake War favia Sunset mille (fresh cut) $10 Setosa Purple nana Tyree fire chalice Bird of Paradise (fresh cut)

I need to drill a hole for 1 inch bulkhead in a 10g tank and my first attemp failed. The glass cracked when it was drilled. Bought another tank and taped the drill area and this time it was perfect. Now I am a little worried that the thin glass of a 10g tank cannot handle the water pressure long...

I doubt it will look this good in my tank

In that case it's a tie. The two choices offer almost the same footprint. So it comes down to which looks better aesthetically. IMO the cube is nicer. When I was looking at the 120g for my upgrade the overflow was on the wrong side. Cube would not have this problem. With a 18" front to back the...

Depends on the look you're looking for. Do you like a minimalistic bonsai look or the traditional back to front sloped look?

These basslets were beauties. Sorry about the loss. I lost a nice wrasse when moving to new tank. Fish fought for territories in a new environment.

Whenever I travel local food and aquarium are on the top of my list to do. I have been to Adventure Aquarium Jenkinson's Aquarium Point Pleasant Brooklyn Aquarium Aquarium of Niagara Georgia Aquarium - we had to take a detour due to Hurricane Irene. So we ended up in Atlanta and visited...

I have been trying Kalk in my own experiement and it's easy to apply and harmless. You can use a turkey baster to remove the Kalk so it won't cause a big alk swing. However the first pass won't kill them all most likely you would need a few more passes. I do have a patch in the back of the...

Running ALK off PH? This is the first time I heard someone doing this. Can't imagine this will actually work. Do you have this running for a while now?