I was having a problem with PH till I started dosing kalk and now it pretty much stays @ 8.3 except for the early morning @ 8.0. I add 1-2 teaspoons to 1 gallon water in a gallon conatainer, shake well, let settle for a few hours and pour into top-off container. Haven't had any problems with build-up and coraline has bloomed dramatically. Water quality is much better and no undesirable algae has shown itself.
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20gl cube
168wt 50/50 PC
1x 1200 MJ PH
approx. 25# LS
34# Fiji LR
various mushrooms, rics, zoos
1 Cherub angel
2 yellow watchman
1 Tiger pistol
1 Astrea snail
5gl AGA fuge
chaeto |