- PH slowly falling?
- question on using tap water
- Collecting rainwater for mixing
- Damp salt mix
- conductivity probe specs
- Magnesium in a 55gallon.
- raising calcium from 400 ppm
- hydrated lime ?
- Is there a way to solidify Calcium chloride and Baking soda?
- Looking at Ozone
- Pharmaceutical Dolomite
- sandpaper in tank cause poisoning?
- Age old question
- Re: your recipe #1 (Ca and Alk)
- saltwater electrolysis
- Question for you Randy, Thanks!
- Ozone
- DI acting strange w/ kalk
- IO or oceanic?
- Calcium Reactor plumbing question
- Continuous water change
- Can I mix kalk with seawater??
- sumplementation
- Randy, Have question
- Calcium carbonate binds PO4 and latter releases it?
- quick question Randy??
- calcium reactor media
- Sea Salt for cooking...just curious
- Anhydrous Calcium choride
- RO water.. Anyone answer.
- 2 questions about 2 part
- Trace Elements
- Whats your preferance of salt mix
- Eric's oxygen articles
- Anyone used GLI pH controllers/transmitters?
- Re-use bag of carbon?
- cement rocks. Cured, but what if a piece breaks off=instant death?
- how to raise Ca & dKH?
- skimming & kalk
- Why run a calcium reactor and kalk reactor on same system
- Whats the diff between carbonate and bicarbonate?
- Adding ESV B-ionic
- so we are supposed to get rid of the stuff that settles out from our kalk/topoff water
- Negative effects after using Pura Phoslock
- Broken PC... shard in tank... chem issues?
- How to raise Ca and dkh?
- Sodium Hydroxide ?
- High calcuim
- pH problem resolved
- Kalk turns yellow?
- What's the ph of kalkwasser at its maximum concentration?
- The Oceanic Mishap
- avoided problems or wasted 10 gallons SW
- Low Ph Condition
- swimming pool additives
- New Sump;water Cloudy?
- Chemical Free Water Conditioner
- Chemistry quest.
- Adding Magnesium (hydroxide or sulphate) to kalkwasser
- Aghhh, Ph is a pain.... Should I add some borax?
- Answers to protein skimming questions?
- Formula to determine how much calcium with kalkwasser?
- RO/DI low Ph
- high pH problem
- Calcium Problem
- CaCl product suitablility
- ozone questions
- Resin From Aquarium Pharmaceuticals tap water filter
- How long before my tank is 100% R/O?
- Pinpoint Salinity Monitor
- Red sea salt
- pre colonized media
- Randy to speak to Boston Reefers on October 1 in Saugus Massachusetts
- High dkH problems
- need expert opinions and help...
- Tank crash
- temp/salinity-refractometer
- Nitrate Reductor Question
- Oops!! Made a boo-boo. Need to lower alk of my water change water.
- Magnesium question..Ionic balance?
- Randy, Another pH question
- Best accurate and easy Test kit
- Difference in RowaPhose and Phosban?
- monitoring calcium hydroxide leaching
- Calcium/Alk Recipe
- Lowering Calcium???
- Question about an Article
- Product Opinion?
- How do you lower Iodate?
- Replacement for Southdown as DSB material
- Adding Homemade Supplements
- Cleaning orp probes/ Wont stay clean.
- When to change the DI filter?
- coraline. How long after adding reactor
- Little help Randy
- My numbers are out of wack
- Recipe #1: Epsom/ Magnesium question
- Silica
- how much should I expect on average for my alk to drop daily?
- Randy is this impossible? Bacteria doing the work?
- Optimal pH for CaCO3/CO2 reactor
- Huge PH swings
- Very high Calcium levels.....
- temp question and nitrates...
- bad tank
- Microbes and bacteria to control ammonia, nitrates even phosphates???
- pH change from kalk
- tank usage of alk.!
- Can all ions but Ca be eliminated from sea water?
- what are the attributes of calcium hydroxide per 1tsp?
- adding clorine to a tank?
- Oznoe --->UV Sterilizer
- Help!! Kalkwasser dumped!!
- pinch of sugar in tank and ph dropped .03 units?
- Got some Calcium Chloride, quick question
- using cement cinder blocks in my reef
- Selectivity of Salifert PO4 test
- Magnesium Dosing
- Iodide
- supermarket shrimp
- sera test kits
- Newb here....do I have my facts straight? Have I been reading the Dr. Randy right?
- Sugar molecule size when dissolved in saltwater?
- Just a few questions
- Kalkwasser not mixing need advise
- How much more expensive are test kits like lamote and hach?
- Kalk Reactor Setup Advice
- Start from scratch?
- Activated carbon vs high density carbon
- diy ph calibration
- top off water
- Sodium bicarbonate and PH
- Dripping Kalkwasser and add B-Ionic?
- what is in spring water
- Low PH, High Alkalinity, Good Calcium
- FasTest Saltwater Kit
- Kalkwasser Powder Purities
- Cacium issue
- Mixing kalk Calculator?
- Co2 ph realtions.
- Just for understanding
- Any harm by dripping unsaturated kalk?
- Will a small glass tank be safe to use as a kalk reservior?
- Diluting two-parts?
- Thanks Randy
- adding live rock to a stable system
- TDS meter question
- Nitrates - oops
- what is meq/l
- Salinity and specific gravity calibration?
- new reactor
- Sodium permanganate
- my understanding of ph/alk in english
- Stressing fish with a water change?
- my kh is 100mg/l whats that require for dosing?
- ro/di water and houshold water softener
- Low PH with RO/DI... why?
- Figuring out how much kalk to dose compared to b-ionic
- Fact or Fiction
- "Algae Magic"
- Using regular sea salt from the grocery store?
- Raising S.G. - Help!
- Dosing Magnesium Question??
- Silica Beads Accident
- Test results questions.
- good tests?
- Calcium Standard for Calcium Test Evaluation
- PhosBan and PH's affect on it.
- Mag. 1150, Alk. 2 DKH, Calc. 340mg/l. Little help!? Por Favor
- Why do I keep thinking that Habibs location is where chemistry started?
- Randy
- S.G and skimmer performance.
- Whats Dangerous
- Nitrate and phospahte problems
- electricity
- raising alk
- Brass and Co2
- Broken link in Reef Chemistry Articles.
- Adding baking soda to top off water???
- Is high Alkalinity bad?
- Cleaning pH probes
- House plants
- Another New Salt
- Another New Reef Book
- Boomer, your assitance.
- running carbon in a reef tank
- Iodine, Strontium dosing question.
- Question: Preservatives in vinegar
- High PH of RODI water
- Testing Equiptment
- Gypsum?
- Need to raise CA
- New to the Fluidized Bed
- Messed up ph scale
- Do calcium reactors eliminate the need for supplementing trace minerals?
- Trouble with low Alk
- test result query
- Raissing Calcium 120ppm
- Problems with "your" kalk topoff method.
- Reef tank in my bed room.Is it OK?
- Kalk powder(limewater)
- Vinegar dosing as a carbon source for bacteria
- another sand question
- pH questiong..?
- bottle water types?
- Help me Randy Holmes Please
- Protein Skimming Efficiency and Reactor Effluent
- Adjustments to Salt Make Up Solutions
- Think i found my nitrate problem
- Can't raise calcium
- Increasing Salinity
- Calcium Reactors
- question about kalkwasser ?
- Whats the rule of thumb for adding pickling lime??
- Weekly WC's to keep params in check, but my salt does the opposite
- Po4 at 1ppm...how
- Power Filter Needed in System???
- low o2
- Ph Rising Since Replacing Calcium Reactor
- Can activated carbon contain phospahtes and/or silicate?
- Low Alk Baking Soda ??
- kalk spill
- pH questiong..?
- calcium reactor VS dosing things like bi-onic
- Dosing Kalk without dripping it.
- Algae and water chemistry
- Substrates
- Carbon suggestion
- Hey Randy!
- steel filled epoxy putty safe for aquariums?
- Guidelines on dosing compatibility
- Kalk Question
- Skimmer not skimming after Phosban introduction
- confused about your artical
- Instant Ocean will not mix completely
- metal
- Skimmer often goes bananas
- Where to buy dow flake?
- Corals are Withering
- Calcium Test Kit Project
- conversions
- bad salt or low salinity cause amm & nitrite?
- adding LS to cycled tank
- How to raise alkalinity without precipitation ?
- silicate remover
- vitamin c "how important is it?"
- Minerals in sea water
- Low Alk And High Mag
- cleaning PH electrode
- carbon dioxide and limewater