NOVELTY - The eco-friendly unit comprises converging tidal inlets and continuous, flexible, porous tubes. The eco-friendly unit is operated using propelling force of an upwards stream of expanding gas bubbles created by an electrolysis unit and using a direct electric current. The electric current is supplied from one of a state of the art eco-friendly water powered direct current electric generator unit to the electrolysis unit to separate the sea water into its component parts of hydrogen, oxygen and chlorine together with smaller quantities of other gases whilst using those gasses.    USE - The eco-friendly unit is useful as an oceanic biological pump that accelerates and increases a biological process of photosynthesis on picophytoplankton and other micro-organisms, where the biological process converts carbonic gas into carbohydrates by a chemical process that is expressed as given in a specification, and the chemical process releases oxygen into sea resulting in an increasing amounts of carbon-dioxide absorbed into a surface of the sea and also an amount of oxygen combined with cloud forming water put back into the atmosphere, which increases the rainfall that increases fish stock together with other marine life which feed on a plankton in the marine food chain all of which would improve the environment in the sea and on the land.    DETAILED DESCRIPTION - The eco-friendly unit comprises converging tidal inlets and continuous, flexible, porous tubes. The eco-friendly unit is operated using propelling force of an upwards stream of expanding gas bubbles created by an electrolysis unit and using a direct electric current. The electric current is supplied from one of a state of the art eco-friendly water powered direct current electric generator unit to the electrolysis unit to separate the sea water into its component parts of hydrogen, oxygen and chlorine together with smaller quantities of other gases whilst using those gasses. The gasses are injected into and mixed with the upwards stream of a bacteria carrying tidal current. The bacteria carrying tidal current flows from a bottom of the ocean into the unit and into a bottom of a flexible pipe, and is propelled upwards. A combination of forces from the tidal energy and a rising stream of bubbles of gas contained in the homogeneous mixture which expands as it rises due to decreasing ambient pressure together with the resulting decreasing specific gravity and increasing pressure and velocity of the homogeneous mixture as it ascends, creates a chimney like effect through the flexible pressurized pipe and water powered generators with the mixture that is expelled at an optimum depth beneath the surface of the sea, where the bacteria and remaining propellant gas in the mixture feeds the plankton and other organisms increases the biological process. The gasses injected and mixed into the sea water and a bacteria mixture at the bottom of the flexible pipe are proportionate to and govern the volume, velocity and pressure of me mixture as it travels upwards when either a diameter of the flexible pipe is to be increased and reinforced to accommodate these increases or the stream divided up into a number of other pipes in a tree like manner is distributed the mixture over a wider area. The eco-friendly state of the art water powered direct current electric generator unit together with buoyancy/ballast unit, dynamic non-return valves unit and mixing unit are empirically spaced and installed along flexible pipes. The converging tidal inlets are positioned in a circle around its central axis, and result in the accelerated flow of water into the unit in a spiral upwards direction inside the unit, which creates a negative pressure zone around the central area, where a suction power is used to suck in additional sea water containing bacteria through an optimum number of root like flexible pipes extending outwards along the sea bed. The circular tidal inlets have an advantage of making its orientation relative to the directions of the tidal currents irrelevant when the unit assembly is lowered into position from a ship. An increase in pressure head with a depth (440 lbs/squ.inch per 1000 feet) requires dependent upon the depth a state of the art high pressure electrolysis separation unit together with a high pressure secondary unit in which each compressed gas of hydrogen, oxygen, chlorine and other smaller quantities of other gasses that are separated, and their quantities are measured and piped away to their required destination. The electrolysis unit and a gas separation and metering units are integrated into a main pumping unit when required. The production of compressed gasses is a major requirement with multiple units located on a sea bed creating a forest like array of tree like structures, which creates a much larger environmentally friendly area. A protection against damage caused by corrosion, weather or static electricity is by a unit of sacrificial anodes, flexibility, state of the art materials and a unit to earth electrical charges. An open mesh filter assembly around the unit: is tidal self cleaning, where a mesh protects against an ingress of unwanted debris and keeps a system eco-friendly; and allows only creatures small enough to pass harmlessly through the entire system. A different configuration with tidal inlets, which require to be orientated at right angles to the tidal currents which flow from left to right and in the opposite direction with the current is diverted with a pivoted flap valve. The continuous, flexible, porous tubes are attached to a concrete base containing a grouting paste. The paste is displaced on an uneven sea-bed due to pressure is exerted on it, where a grout is squeezed out through the porous walls to provide a seal when the grout solidifies. The unit is operated in inland waterways by adding brine to the electrolysis unit.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a circular shaped tidal powered biological pumping unit.    Converging inlet vanes (2)    Gas injection unit (5)    Liquid/gas mixing units (6)    Separation assembly (7)    Electric generators. (8)