Bloom Cal Calcium and Magnesium Supplement

Name: Cal by Bloom — Calcium and Magnesium Supplement for Coco, Soft Water and LED
Brand: Bloom Yellow Bottles
SKU: BLOOM-CAL-300
Price: 19.95 AUD
Availability: InStock

Bloom Cal yellow bottle, calcium and magnesium supplement by Bloom Yellow Bottles

$19.95

Tax included. Shipping calculated at checkout.

Calcium and magnesium supplement for coco, soft water and LED grows. 1ml per litre every feed, from seedling to late flower.

Size

300ml

2.5L

Quantity

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Pairs well with

Rusty spots, curled tips and pale new growth are the classic signs of plants running short of calcium and magnesium, and coco, soft rainwater and strong LED lighting all make it more likely. Cal by Bloom, sold in the US as Cal-Mag, tops both up: calcium nitrate and magnesium nitrate with chelated iron and zinc, at 1ml per litre in every feed. A litre makes 1,000 litres. It carries nitrogen (6.8-0-0), so it adds to your feed's N, and it's a supplement for a gap in your water or medium, not a fix for spotting caused by pH, overwatering or root problems.

Built for coco and soft waterThe setups that run short of calcium and magnesium fastest are the ones it's made for.

Calcium and magnesium togetherCalcium for cell walls, magnesium for chlorophyll, in one bottle.

Chelated iron and zincIron DTPA and zinc EDTA on the label alongside the calcium and magnesium.

1 litre makes 1,000 litresAt 1ml per litre, cheap cover for the most common deficiency in a grow room.

Every feed, any stageSeedling to late flower at one rate, with no stage changes to track.

Sits on top of your baseRuns alongside your base nutrients rather than replacing part of them.

Specifications

Brand: Bloom (Agricultural Organics)

Also sold as: Cal-Mag

Type: Calcium and magnesium supplement

NPK: 6.8 - 0 - 0

Key inputs: Calcium nitrate, magnesium nitrate, iron DTPA, zinc EDTA

Rate: 1ml per litre

When to use: Every feed, seedling to late flower; especially in coco and soft water

Yield: 1L makes 1,000L of feed at 1ml/L

Suits: Soil, coco and hydro

Sizes: 300ml, 1L, 2.5L

Made in: South Australia

Biodegradable: Yes, 100% (manufacturer)

Grower's Tip

Running coco or rainwater? Put Cal in from the first feed rather than waiting for spots to show.
Check your pH before you blame calcium. Lockout from pH drift looks a lot like a deficiency.
Cal carries nitrogen, so factor it in late in flower if your feed is already heavy on N.
Add it after your base nutrients and stir it through, then check EC and adjust pH last.
Running Silica? Silica still goes in first, on its own, before anything else.
Shake well before use. Colour and consistency vary a little between batches, which is normal.

How To Use It

1Shake the bottle well.

2Fill your reservoir with water. If you run Silica, add it first and stir it through.

3Add your base nutrients, then add Cal at 1ml per litre and mix thoroughly.

4Check EC and adjust pH last.

5Feed every watering, seedling to late flower.

Pairs Well With

Silica by Bloom

Potassium silicate for stronger stems. Goes in the tank first, then Cal.

Sea Minerals by Bloom

Fills in the trace minerals a base feed leaves out, alongside Cal's calcium and magnesium.

Ooze by Bloom

The heart of Bloom's flower trio. From week 5 through the flush, for aroma and finish.

Phat by Bloom

Weeks 3–4 of flower, for size and density. Part of Bloom's core flower trio.

Final by Bloom

The ripener for the last two weeks of flower, and the third bottle of the trio.

Cal Mag Supplements

Every calcium and magnesium supplement we stock.

Frequently Asked Questions

Is Bloom Cal a cal-mag?

Yes. It's a calcium and magnesium supplement, sold in the US as Bloom Cal-Mag.

Do I need Cal in coco?

Yes, usually. Coco holds onto calcium and magnesium, so most coco growers run a cal-mag every feed.

How much do I use?

1ml per litre, every feed.

Does Cal contain nitrogen?

Yes. It's made from calcium and magnesium nitrate, so it reads 6.8-0-0 and adds to your feed's nitrogen.

Will Cal fix brown spots on my leaves?

It will if they come from a calcium or magnesium shortage. Check your pH and watering first, because lockout and root problems look similar.

Do I need to cut back my base nutrients?

No. Bloom designs its additives to run alongside your base feed at its normal rate, so you add Cal on top rather than in place of anything.

How long does a bottle last?

A litre makes 1,000 litres of feed at 1ml per litre. The 300ml makes 300 litres.

Is it organic?

No. It's a mineral supplement, and Bloom's range is not certified organic.

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Order by 2pm and it ships the same business day from Invermay, Tasmania.

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Cal by Bloom — Calcium and Magnesium Supplement for Coco, Soft Water and LED