You can use gravel vacuum. Just hold it a few inches above the sand and give it a swirl. However, in an established NPT you dont have to remove the poo and fish food.
I have sand in my planted tank and the stems are all doing fine. The crypts, enh, not so much.
In a 75gal, you may need to get a T5-HO to get enough light down to the bottom.
Ah, if this is a tank for goldies, then you'll want to stick with swordplants; goldies might eat anything else except anubias and crinum. Make the sand bed at least 3 inches deep and use a stick fertilizer or an iron supplement. Still might want the T5-HO; swords will do okay in low light but better in higher.
I have used Miricle Grow a drop in my tank. I spray all sorts of ferts as mist onto my semiaquatics and the water falls off them into my 20 gallon. I use aquatic plant fertilizer too.
and no bettas...there are some that aren't very good for them, like the co2 supplements, but i'm pretty sure that fish tank fertilizers are designed with fish health in mind.
Aquatic fertilizers are designed for use in planted tanks with fish so they are safe. Overuse of fertilizers might not be good for invertebrates like snails and shrimp who are sensitive to copper and metals, though.
I have sand in my planted tank and the stems are all doing fine. The crypts, enh, not so much.
In a 75gal, you may need to get a T5-HO to get enough light down to the bottom.
Ah, if this is a tank for goldies, then you'll want to stick with swordplants; goldies might eat anything else except anubias and crinum. Make the sand bed at least 3 inches deep and use a stick fertilizer or an iron supplement. Still might want the T5-HO; swords will do okay in low light but better in higher.
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