Fish Tank Grow>> Pictures.

masterpotchef said:

Can you grow hydroponics/dwc with just fresh ph adjusted water? As in no nutes...?

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Just like you-she would live for a while on water only but will die soon enough without food

masterpotchef said:

Have a lot of yellowing/tip burn, all the way up the plant and the lower leaves are starting to die.
Think ph is my problem, it was almost a 7!, Brought it down to a 6 for now.

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Ph is an issue but your plant is also eating itself to maintain life without food

Do a water test for nitrites and nitrates. A pH of 7 is perfect for AP. Fish prefer 8, plants 6, so a pH of 7 keeps both happy. Yellowing of new growth only usually indicates an iron deficiency. Yellowing of old growth or all growth a nitrogen def. How are the fish? Plenty of light? Try adding maxicrop with iron to you water, it will cover the micro nutes, and iron def is common in AP, because fishfood doesn't have any. Don't expect great results from aquaponics until system is matured, and stable for 6 months or so. Each 5 gallons of water can have 1 lb of well-fed fish, and 10 gallons of media that stays both wet and oxygenated. If you're outside of this ratio, then things won't be optimum. Not enough fish or feed, then not enough nutes. Not enough media, then not enough bacteria to convert fish waste and things go south quick.

Also, adjust pH SLOWLY when fish are in involved. Rapid swings are toxic to both fish and bacteria. A stable system shouldn't need any pH help. Plant uptake raises pH, nitrifying bacteria lower it, they seem to do all the work for me. My well water is 8, yet system water stays glued to 7 when all is healthy.

Moved her into a 5 gallon bucket. She's growing slowly but surely, but does have lower yellowing. I just introduced her to nutrients for the first time. An all organic fish and seaweed fertilizer. Hopefully it will help, time will tell.


-masterpotchef

That thing has major deficencies, you should have been feeding her from the start! If you're not in a fish tank anymore then why are you useing fish tank nutes? At this point any nutes are better than none but you should get some real hydro nutes...

They are hydro nutes, just made from fish and seaweed...

i let pH drift unchecked in my cloner/vegger, and it would end up around 7.0 all the time. growth was still outstanding, dark green, lush. i was topping off with 8.2 tap water. biggest problem with high pH is that minerals precipitate out of solution. you'll get a white crust that irreversibly forms all over everything, including roots, which will eventually kill plants. it'll fuck up your pump, airstones, everything eventually. keep pH low to keep things in solution. i wouldn't go past 6.0. nitro bac will do fine. not ideal for them, but they'll still do their thing, just more slowly. eventually, through natural selection, your system will be colonized with strains of nitro bacteria that can handle lower pH.

also, don't be afraid to add nutes. it doesn't kill fish. they'll be fine. trust me. if fish die, they're not the ones you want anyway. get more, keep the ones that survive, repeat. mine are even breeding on their own, so their propagating their low pH tolerant genes to the next generation. wild-caught minnow species are especially hearty when it comes to pH ranges, high ammonia conditions from overfeeding or suboptimal conditions for nitro bac.

my current ap grow: https://www.rollitup.org/hydroponics-aeroponics/559989-flowering-aquaponics-revisited.html

keep experimenting!

I loved this thread! haha, keep experimenting. experimenting with weed plants can be hazardous to your freedom.

I just got done reading this thread and there is a lot of misinformation.

Fish do not need light in order to be happy. They have evolved over thousands of years to be able to live in murky dark water. The ones that swam to the top where the light is were plucked from evolution by predators.

You can use hydro nutes in fish tanks. Just don't overdo it and keep an eye on your ammonia and nitrite levels. Also, if your fish is swimming upside down please back off the nutes.

I also don't think the tank was stocked with enough fish to support the growth you were after. A testing kit will allow you to balance the plant and fish life best. It takes a lot of fish poop to grow some plants.

Anyone planning on running an aquaponic setup like this should check out the backyard aquaponics website and do a little research first. There is a ton of info there about how to balance a setup like this. Also, anyone wanting to give advice on a setup like this should also research and know what they are talking about as advice for conventional hydro does not always apply.

/rant

ATL HYDRO said:

I have 2 pieces of advice:

1- Use nutrients, even new sprouts need some nutes. start with 1/4 strength and work your way up.

2- IF YOU BLACK OUT THE GLASS SO THAT LIGHT CAN'T REACH THE WATER YOU WILL NOT GET ANY ALGAE. ALGAE NEEDS LIGHT TO LIVE. BLOCK THAT LIGHT!

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masterpotchef said:

Thought about a filter, but I think the plants would prefer the "dirty by fish" water. I'll just keep topping it off with fresh ph'd water once it is evaporated/used up.

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I hope this worked i see this is an old thread, did u grow buds? i got two tips one practical one silly use a spray bottle to leaf feed ur plants supplemental tlc(nuts) and add a bunch os skulls to the water ....real ones did i say silly i meant sinister

WHO INVITED THAT ONE GUY, YOU KNOW THE DICK WITH THE HORNS HES BURNIN UP OUR STASH MAN , HES GAINED WEIGHT SINCE HES BEEN HERE HES GOTZ TA GOOO _James franco

What you guys are referring to is called aquaponics which is not a new idea but is more challenging with marijuana.The main nutrient provided by the fish is nitrogen, as nitrate, but the system is lacking in enough phosphorus and potassium for those high yielding plants we expect out of hydroponics. That amount of fertilizer would kill your fish, which is why aquaponics is generally used for plants like lettuce or kale that don’t require such high P or K. In order to prevent this you need a dual root zone. It gives you multiple zones of control where you have a soil layer you can control separately from your aquatic layer without the two contaminating each other. imagine a water permeable pot with holes in it, filled two-thirds with hydrocorn and the other third with organic soil, and a layer of burlap separating them. The pot is placed in the aquaponic system so that the tank’s water only comes up to just below the burlap flap. As the plant grows, it will have some of its roots in the soil, and some in the hydrocorn. By figuring out how much water the soil in the pot can hold (by doing a few trials before you put it into use), you can feed the soil with enough P and K to keep your plants happy without contaminating the water the fish live in.

I don't understand why it appeals to people to try and grow in fish tanks. You like cannabis? You like fish? Get a 10-20 gallon fish tank.... buy fish... fill it with the right water... and than go get a 5 gal buckets, an air pump, some air stones, a TDS & Ph meter, some nutes and PH up/down and go from there.

I think they want to try and have a self sustaining grow that requires little to no attention. While its practical for other plants I dont think MJ is the best candidate. I suppose with other plants like lettuce the benefit is not having to feed you plants nutes but fish cant provide all the nutrients cannabis need to really thrive. Its counter productive in my mind. Screw the fish and just concentrate on growing high quality big buds.