Largest Safe Alk Swing in One Dose

[Markxc]

Hi all - I wanted to get people's opinions on what the largest amount you can manually dose at once is (in terms of Alkalinity)?

I have about net 17.5 gallons of water and am currently manually dosing 2 part. I do 3 ml twice a day - once in the morning before work and once at night after work. Running this through a calculator it says that this is about 0.4 dkh swing per 3 ml dose. My required daily dosage has been slowly rising (it was about 4 ml/day a month ago) and I will also be adding a few sps pieces in a couple weeks. Because of space/gf limitations I cant get an auto doser so Im wondering when i need to start worrying that swings from manual dosing will start causing problems.

 

[AiKkz]

I wouldn’t go Over .5 dkh in one dose especially with sps. For example 7.5 to 8.0 in one dose. I’ve done this with “hardier sps” like birds nest and digis with no problems.

 

[Phil85]

With softies, LPS and BTA’s I’ve done 1 dKh before to no detriment. However I wouldn’t recommend this as standard practice. Stable conditions help all organisms. Less than 0.5 would be ideal.