Best alkalinity for mixed reef being sps dominant

[52728299]

My tank seems to do well with dkh around 9.3 and ca at 450-470

I don't have sps tho

 

[jhadaway]

I like keeping my alk at 9dkh

Same here. 9. Gives me some wiggle room if something drifts

 

[Reef Psychology]

Try to keep Alk @ 7.8-8.

 

[Hurricane Aquatics]

I've never understood why people want to keep 7 or 8 strict Alk. I can never get mine that low and have never been able to unless I'm adding chemicals, which I wouldn't do.

Red Sea Blue Bucket mixes around 8. 2 to 8.6. My stupid Neptune Trident always tests about 8.2 to 8.8. In reality, my Hanna testers test 1 dkh higher than the Trident.

Keeping your PH up with Kalk or dosing with 2 part, etc will raise your Alk. I suppose if you used a salt like TM Pro and had a calcium reactor, then you could keep it lower.

If your Alk swings from 8.2 to 8.7 daily, Acropora never seem to mind. I'm sure if you let it swing by 2 points, yes sure, that will have some consequences.

Is there any verifiable evidence that 7 dkh grows Acropora better than say 10? That's an honest question too. Mean nothing by it, but I've never seen anything that says different.

 

[gbroadbridge]

I've never understood why people want to keep 7 or 8 strict Alk. I can never get mine that low and have never been able to unless I'm adding chemicals, which I wouldn't do.

Red Sea Blue Bucket mixes around 8. 2 to 8.6. My stupid Neptune Trident always tests about 8.2 to 8.8. In reality, my Hanna testers test 1 dkh higher than the Trident.

Keeping your PH up with Kalk or dosing with 2 part, etc will raise your Alk. I suppose if you used a salt like TM Pro and had a calcium reactor, then you could keep it lower.

If your Alk swings from 8.2 to 8.7 daily, Acropora never seem to mind. I'm sure if you let it swing by 2 points, yes sure, that will have some consequences.

Is there any verifiable evidence that 7 dkh grows Acropora better than say 10? That's an honest question too. Mean nothing by it, but I've never seen anything that says different.

Natural Sea Water is around 7.7

I don't do chemicals or anything, I just program my system to 7.7 and the dosing keeps it there +/ 0.2dkh
When I did that growth in both my tanks exploded. That's it :)

 

[Charlie’s Frags]

My corals are happy at 7-9 dKh

 

[ARichied]

I have a mixed reef with tons of different corals and keep my alk at 7.5. It works pretty good in my case.

What about your cal? And mag? Btw beautiful tank!! Your killing it!!